TROUBLESHOOTING. Toshiba RAV-SM560 BT-E, RAV-SM560 XT-E, RAV-SM560 KRT-E, RAV-SM800 AT-E, RAV-SM800 KRT-E, RAV-SM800 BT-E, RAV-SM800 XT-E, RAV-SM560 UT-E, RAV-SM560 AT-E, RAV-SM800 UT-E

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10. TROUBLESHOOTING

10-1. Summary of Troubleshooting

<Wired remote controller type>

1. Before troubleshooting

1) Required tools/instruments

•

+ and

–

screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

•

Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

Q

The following operations are normal.

a) Compressor does not operate.

•

Is not 3-minutes delay (3 minutes after compressor OFF)?

•

Does not thermostat turn off?

•

Does not timer operate during fan operation?

•

Is not outside high-temperature operation controlled in heating operation?

b) Indoor fan does not rotate.

•

Does not cool air discharge preventive control work in heating operation?

c) Outdoor fan does not rotate or air volume changes.

•

Does not high-temperature release operation control work in heating operation?

•

Does not outside low-temperature operation control work in cooling operation?

•

Is not defrost operation performed?

d) ON/OFF operation cannot be performed from remote controller.

•

Is not the control operation performed from outside/remote side?

•

Is not automatic address being set up?

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

R

Did you return the cabling to the initial positions?

S

Are connecting cables of indoor unit and remote controller correct?

(2) Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

Trouble

→

Confirmation of check code display

→

Check defective position and parts.

NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables.

–

65

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<Wireless remote controller type> (Only for 4-way air discharge cassette type models)

1. Before troubleshooting

1) Required tools/instruments

•

+ and

–

screwdrivers, spanners, radio cutting pliers, nippers, etc.

•

Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

Q

The following operations are normal.

a) Compressor does not operate.

•

Is not 3-minutes delay (3 minutes after compressor OFF)?

•

Does not thermostat turn off?

•

Does not timer operate during fan operation?

•

Is not outside high-temperature operation controlled in heating operation?

b) Indoor fan does not rotate.

•

Does not cool air discharge preventive control work in heating operation?

3) Outdoor fan does not rotate or air volume changes.

•

Does not high-temperature release operation control work in heating operation?

•

Does not outside low-temperature operation control work in cooling operation?

•

Is not defrost operation performed?

4) ON/OFF operation cannot be performed from remote controller.

•

Is not forced operation performed?

•

Is not the control operation performed from outside/remote side?

•

Is not automatic address being set up?

Q

Did you return the cabling to the initial positions?

R

Are connecting cables between indoor unit and receiving unit correct?

2. Troubleshooting procedure

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

When a trouble occurred, check the parts along with the following procedure.

Trouble

→

Confirmation of lamp display

(When 4-way air discharge cassette type wireless remote controller is connected)

Check defective position and parts.

1) Outline of judgment

The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with the following method.

Method to judge the erroneous position by flashing indication on the display part of indoor unit

(sensors of the receiving unit)

The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.

–

66



10-2. Check Code List

Error mode detected by indoor unit

◎

: Flash,

〇

: Go on,

●

: Go off

Wireless sensor lamp display

Operation Timer Ready

Wired remote controller

Check code

E03

◎ ● ●

●

◎

◎

◎

◎

◎

◎

●

●

●

◎

◎

◎

◎

◎

◎

◎

◎

●

●

●

●

●

●

○

◎

◎

◎

●

●

◎

◎

◎

◎

●

●

◎

●

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

●

●

●

●

●

●

E04

E08

L03

L07

L08

L09

L30

P01

P10

P12

P19

P31

F01

F02

F10

F29

E10

E18

Duplicated indoor unit addresses

Duplicated indoor master units

Unsetting of indoor group address

Unset indoor capacity

Abnormal outside interlock input

Fan motor thermal protection

Float switch operation

• of float circuit

Indoor DC fan error

Error in 4-way valve system heating operation.

Diagnostic function

Cause of operation

No communication from remote controller (including wireless) and communication adapters

The serial signal is not output from outdoor unit to indoor unit.

•

Miscabling of inter-unit cables

•

Defective serial sensing circuit on outdoor P.C. board

•

Defective serial receiving circuit on indoor P.C. board

There is group line in individual indoor units.

Disconnection, coming-off, defective float switch contactor

•

Indoor heat exchanger temperature lowered after start of

Own unit stops while warning is output to other indoor units.

Coming-off, disconnection or short of indoor heat exchanger sensor (TCJ)

Coming-off, disconnection or short of indoor heat exchanger sensor (TC)

Coming-off, disconnection or short of indoor heat exchanger sensor (TA)

Indoor EEPROM error

•

EEPROM access error

Communication error between indoor MCU

•

Communication error between fan driving MCU and main

MCU

Regular communication error between master and sub indoor units or between main and sub indoor units

Status of air conditioner

Stop

(Automatic reset)

S top

(Automatic reset)

Stop

Stop

Stop

Stop

Stop

Stop

Stop

(Automatic reset)

Stop (Sub unit)

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Stop

(Automatic reset)

Condition

Judgment and measures

Displayed when error is detected







1. Check cables of remote controller and communication adapters.

•

Handy remote controller LCD display OFF (Disconnection)

•

Central remote controller [97] check code

1. Outdoor unit does not completely operate.

•

Inter-unit cable check, correction of miscabling, case thermo operation

•

Outdoor P.C. board check, P.C. board cables check

2. In normal operation

P.C. board (Indoor receiving/Outdoor sending) check

1. Check whether there is modification of remote controller connection (Group/

Individual) or not after power has been turned on (finish of group configuration/ address check).

* If group configuration and address are not normal when the power has been turned on, the mode automatically shifts to address setup mode. (Resetting of address)

1. Set the indoor capacity. (DN=I1)










1. Check outside devices.

2. Check indoor P.C. board.

1. Check thermal relay of fan motor.


1. Defect of drain pump

2. Clogging of drain pump

3. Check float switch.


1. Defective detection of position

2. Over-current protective circuit of indoor fan driving unit operates.

3. Lock of indoor fan


1. Check 4-way valve.

2. Check indoor heat exchanger (TC/TCJ) sensor.


1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08].


1. Check indoor heat exchanger temperature sensor (TCJ).


1. Check indoor heat exchanger temperature sensor (TC).


1. Check indoor heat exchanger temperature sensor (TA).


1. Check indoor EEPROM. (including socket insertion)


1. Check cables of remote controller.

2. Check power cables of indoor unit.


1. Check cables of remote controller.

2. Check indoor power cable.


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Error mode detected by outdoor unit

◎ : Flash, 〇 : Go on, ● : Go off



Operation Timer Ready Check code

H01

● ◎ ●


Breakdown of compressor

•



●

●

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

◎

○

○

●

●

●

●

●

◎

◎

◎

●

●

◎

◎

◎

◎

◎

◎

◎

○

○

○

H02

H03

L29

L31

P03

P04

P22

P26

P29

F04

F06

F08

Coming-off, disconnection or short of outdoor temperature sensor (TD)

Coming-off, disconnection or short of outdoor temperature sensor (TE/TS)

Coming-off, disconnection or short of outdoor temperature sensor (TO)

Stop


Condition


Compressor does not rotate.

•

Over-current protective circuit operates after specified time passed when compressor had been activated.

Stop

Current detection circuit error

•

Current value at AC side is high even during compressor-OFF.

•

Phase of power supply is missed.

Stop

Stop Outdoor unit and other errors

•

Communication error between CDB and IPDU

(Coming-off of connector)

•

Heat sink temperature error

(Detection of temperature over specified value)

Phase detection protective circuit operates.

(Normal models)

Discharge temperature error

•

Discharge temperature over specified value was detected.



1. Compressor immediately stops even if restarted. : Check IPDU.

2. Phase-missing operation of power supply

Check 3-phase power voltage and cables.

1. Check cables of CDB and IPDU.

2. Abnormal overload operation of refrigerating cycle

Operation continues.

(Compressor stops.)


1. Check power phase order (Reversed phase)/phase missing.

2. Check outdoor P.C. board.

Stop


1. Check refrigerating cycle. (Gas leak)

2. Trouble of PMV

3. Check Td sensor.

High-pressure protection error by TE sensor

(Temperature over specified value was detected.)

Stop

Outdoor DC fan error Stop


1. Overload operation of refrigerating cycle

2. Check outdoor temperature sensor (TE).

3. Check outdoor CDB P.C. board.


1. Defective detection of position

2. Over-current protective circuit of outdoor fan driving unit operates.

3. Lock of outdoor fan


Inverter over-current protective circuit operates. (For a short time)

Short voltage of main circuit operates.

IPDU position detection circuit error


1. Check power voltage. AC200V±20V

2. Overload operation of refrigerating cycle

3. Check current detection circuit at AC side.


1. Trouble of compressor (Compressor lock, etc.) : Replace compressor.

2. Defective cabling of compressor (Phase missing)

3. Phase-missing operation of power supply (3-phase model)

Stop

Stop

Stop

Stop


1. Inverter immediately stops even if restarted. : Compressor motor rare short

2. Check IPDU. : Cabling error


1. Position detection circuit operates even if operating compressor by removing

3P connector. : Replace IPDU.


1. Check outdoor temperature sensor (TD).



1. Check outdoor temperature sensor (TE/TS).




1. Check outdoor temperature sensor (TO).


For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit.



Error mode detected by remote controller or network adapter

◎ : Flash, 〇 : Go on, ● : Go off


Operation Timer Ready

— — —


Check code

No check code is displayed.

(Remote controller does not operate.)

◎

◎

◎

◎

—

—

—

●

●

●

○

—

—

—

●

●

●

◎

—

—

—

E01*2

•


No communication with master indoor unit

•

Remote controller cable is not correctly connected.

•

Power of indoor unit is not turned on.

•

Automatic address cannot be completed.

No communication with indoor master unit

Disconnection of inter-unit cable between remote controller and master indoor unit

(Detected at remote controller side)


Stop

Stop


(Automatic restart)

* When there is center, operation continues.


Condition

—



Remote controller power error, Defective indoor EEPROM

1. Check remote controller inter-unit cables.

2. Check remote controller.

3. Check indoor power cables.


5. Check indoor EEPROM. (including socket insertion)

: Phenomenon of automatic address repetition occurred.

Signal receiving of remote controller is defective.

1. Check remote controller inter-unit cables.

2. Check remote controller.

3. Check indoor power cables.


Signal sending of remote controller is defective.

1. Check sending circuit inside of remote controller.

: Replace remote controller.

E02 Signal sending error to indoor unit


Multiple master remote controllers are recognized.


Stop

(Automatic restart)

* When there is center, operation continues.

Stop

(Sub unit continues operation.)

E09

L20

Central remote controller

98

—

*3


99

—

*3


97

—

Central remote controller b7

Duplicated indoor central addresses on communication of central control system (AI-NET)

(Detected by central controller side)

Multiple network adapters on remote controller communication line


Interruption of central control system (AI-NET) communication circuit


Indoor Gr sub unit error


Stop

(Automatic restart)



(According to handy remote controller)

Continuation/stop

(Based on a case)






1. Check there are multiple master units for 2 remote controllers

(including wireless).

: Master unit is one and others are sub units.

1. Check address setup of central control system network.

(Network adapter SW01)

2. Check network adapter P.C. board.

1. Check multiple network adapters.

2. Check inter-unit cable/miscabling of remote controller.

: Only one network adapter on remote controller communication line

1. Check communication line/miscabling. Check power of indoor unit.

2. Check communication. (XY terminals)

3. Check network adapter P.C. board.

4. Check central controller (such as central control remote controller, etc.).

Check the check code of corresponding unit by handy remote controller.

*2 Check code is not displayed by wired remote controller. (Usual operation of air conditioner is disabled.)

For wireless type models, E01 is notified by the display lamp.

*3 These errors are related to communication of remote controllers (A, B) and central system (AI-NET, X, Y), and [E01], [E02], [E03], [E09], or [E18] is displayed or no check code is displayed on the remote controller according to the error contents.



10-3. Error Mode Detected by LED on Outdoor P.C. Board

<SW800: LED display in bit 1, bit 2, bit 3 OFF>

•

When multiple errors are detected, the latest error is displayed.

•

When LED display is ○ (Go on), there is the main cause of trouble on the objective part of control at CDB side and the unit stops.

•

When LED display is ◎ (Flash), there is the main cause of trouble on the objective part of control at IPDU side and the unit stops.

•

When case thermostat operates, the communication is interrupted on the serial circuit. If continuing the case thermostat operation, a serial communication error occurs because serial sending to the indoor unit is interrupted.

No.

Item

CDB side

5

6

3

4

1

2

7

8

TE sensor error

TD sensor error

TS sensor error

TO sensor error

Discharge temp. error

DC outdoor fan error

Communication error between IPDU

(Abnormal stop)

High-pressure release operation

L29

P04

IPDU side

9

10

11

12

13

14

15

16

EEPROM error

Communication error between IPDU

(No abnormal stop)

G-Tr short-circuit protection

Detection circuit error

Current sensor error

Phase missing detection

Comp. lock error

Comp. breakdown

○

: Go on

●

: Go off

◎

: Flash (5Hz)

—

—

P26

P29

H03

H03

H02

H01

F06

F04

F06

F08

P03

P22

Check code

Type A Type B

18

19

18

1B

1E

1A

1C

21

—

—

—

14

16

17

17

1D

1F

●

○

●

D800

(Red)

○

○

●

●

●

○

○

◎

●

◎

●

●

◎

●

◎

◎

●

●

●

LED display

D801

(Yellow)

●

○

●

○

○

○

D802 D803

(Yellow) (Yellow)

●

●

○

●

○

○

●

●

●

●

●

●

● ● ○

○

○

●

●

●

○

●

●

●

●

◎

◎

○

○

○

●

●

●

◎

●

●

<<Check code>>

The check codes are classified into Type A and Type B according to the used remote controller. Be sure to check the remote controller which you use.

Type A :

Neutral 2-cores type wired remote controller such as RBC-AMT21E, RBC-AS21E, and wireless remote controller kit such as TCB-AX21U (W)-E

Type B :

Polarized 3-cores type wired remote controller such as RBC-SR1-PE, RBC-SR2-PE, and central control remote controller such as RBC-CR64-PE

–

70



10-4. Troubleshooting Procedure for Each Check Code

10-4-1. New Check Code/Present Check Code (Central Control Side)

[E01 error]/

*

[99 error]

*

: When central controller [99] is displayed, there are other causes of error.

Is inter-unit cable of A and B normal?

YES

NO

Is there no disconnection or contact error of connector on harness from terminal block of indoor unit?

NO

YES

NO

Is group control operation?

YES

Is power of all indoor units turned on?

YES

NO

Is power supplied to remote controller?

AB terminal: Approx. DC18V

YES

NO

YES

Are two remote controllers set without master unit?

NO

Correct inter-unit cable of remote controller.

Correct connection of connector.

Check circuit cables.

Check power connection of indoor unit.

(Turn on power again.)

Check indoor P.C. board (MCC-1402).

Defect Replace

Correct as a master unit/a sub unit

(Remote controller address connector)

Check remote controller P.C. board.

Defect Replace

[E09 error]/

*

[99 error]

*

: When central controller [99] is displayed, there are other causes of error.

YES

Are two remote controllers set without master unit?

NO

Correct as a master unit/a sub unit

(Remote controller address connector)

Check remote controller P.C. board.

Defect Replace

– 71 – www.ilmalämpöpumput.com


[E04 error]/[04 error]

Does outdoor unit operate?

YES

NO

NO

Is setup of group address correct?

YES

Check item code [14].

NO

Are 1, 2, 3 inter-unit cables normal?

YES

Correct inter-unit cable.

Are connections from connectors of inter-terminal blocks (1, 2, 3) of indoor/outdoor units normal?

YES

NO


Does voltage between

2 and 3 of inter-terminal blocks (1, 2, 3) of indoor unit vary?*

YES

NO

Check indoor P.C. board

(MCC-1402).

Defect Replace

*

As shown in the following figure, perform measurement within

20 seconds after power ON.

S5277G

Black

3

White

2

1

Inter-terminal block

For RAV-SM560AT-E, main circuit on control

P.C. board

Is DC280V applied between terminals of electrolytic capacitor of IPDU main circuit?

For RAV-SM560AT-E, check case thermo.

YES

NO

Replace IPDU.


(MCC-1402 or MCC-1403).

Defect Replace

Check CDB.

Defect Replace

Is DC7V power supplied to CDB?

Are cablings between Pin 2 and Pin 5 of CN800 and between IPDU and CDB normal?

YES

NO

NO

NO

Is case thermo (CN500) connected?

YES

Does case thermo operate?

YES

Check/Correct charged refrigerant amount.

Replace IPDU.



–

72



[E10 error]/[CF error]

<Only for 4-way air discharge cassette type (RAV-SM560UT-E/RAV-SM800UT-E)>

Check indoor control P.C. board (MCC-1402).

Defect Replace

[E18 error]/[97 error]

*

[99 error]

*

: When central controller [99] is displayed, there are other causes of trouble.

Is inter-unit cable of A and B normal?

YES

NO

Correct inter-unit cable of remote controller.

Is there no disconnection or contact error of connector on harness from terminal block of indoor unit?

NO

YES

YES

Is group control operation?

NO


Check circuit cables.

Is power of all indoor units turned on?

NO


Defect Replace

Check power connection of indoor unit.

(Turn on power again.)

[E08, L03, L07, L08 error]/

*

[96 error] [99 error]

*

: When central controller [99] is displayed, there are other causes of trouble.

E08 : Duplicated indoor unit numbers

L03 : Two or more master units in a group control

L07 : One or more group addresses of [Individual] in a group control

L08 : Unset indoor group address (99)

If the above is detected when power has been turned on, the mode automatically enters in automatic address setup mode. (Check code is not displayed.)

However, if the above is detected during automatic address setup mode, the check code may be displayed.

[L09 error]/[46 error]

Is capacity of indoor unit unset?

NO

YES

Set capacity data of indoor unit.

(Setup item code (DN) = 11)


Defect Replace



[L20 error]/[98 error]

Are cable connections to communication line X, Y normal?

YES

Is central controller [98] displayed?

YES

Is indoor remote controller

[L20] displayed?

YES

Are not multiple same central control network addresses connected?

NO

Check central controller

(including network adapter).

Defect Replace.

NO

NO

YES

Correct cable connection


(MCC-1402 or MCC-1403).

Defect Replace

Correct central control network address.

[L30 error]/[B6 error]

Are outside devices of connector CN80 connected?

YES

NO

Do outside devices normally operate?

YES

NO

Check operation cause.


(MCC-1402 or MCC-1403).

Defect Replace

Check outside devices.

Defect Replace

[b7 error] (Central controller)

Is group operation performed?

YES

Is check code displayed on sub unit of main or sub remote controller?

YES

Check corresponding indoor/outdoor units.

NO

NO

–

74



(MCC-1402 or MCC-1403).

Defect Replace


[P10 error]/[Ob error]

Is connection of float switch connector

(Indoor control P.C. board CH34) normal?

YES

NO

Does float switch operate?

YES

NO

Is circuit cabling normal?

YES

NO


Check and correct cabling/wiring.


(MCC-1402 or MCC-1403).

Defect Replace

Does drain pump operate?

YES

NO

Check drain pipe, etc.

Is power of drain pump turned on?

YES

NO

Replace drain pump.

Check cabling.


(MCC-1402 or MCC-1403).

Defect Replace

[F10 error] [0C error]

Is connection of TA sensor connector

(indoor P.C. board CN104) normal?

YES

Are characteristics of TA sensor resistance value normal?

YES

NO

NO

* Refer to Characteristics-1.


(MCC-1402 or MCC-1403).

Defect Replace


Replace TA sensor.

–

75



[P12 error]/[11 error]

<Only for 4-way air discharge cassette type models (RAV-SM560UT-E/RAV-SM800UT-E)>

Turn off the power.

Are not there connections errors or disconnection on connectors CN333 and CN334 of indoor unit P.C. board (MCC-1402)?

NO

YES

Remove connectors CN333 and

CN334 of indoor unit P.C. board

(MCC-1402).


Does the fan rotate without trouble when handling the fan with hands?

YES

Are resistance values between phases at fan motor connector CN333 motor side of indoor P.C. board (MCC-1402) correct? *1

YES

Is resistance value of fan motor connector

CN333 at motor side of indoor P.C. board

(MCC-1402) correct? *2

YES

Is signal output of indoor fan motor position detection correct? *3

YES

NO

Replace indoor fan motor.

NO


*

1

•

Are not coil windings between between

5

3

1

5

1

(Red lead) and (White lead),

(White lead) and (Black lead), between

For resistance, see the following values.

AIU-P401H/HR, P451, P501, P561, P631, P711, P801

Approx. 70 to 100

AIU-P1121H/HR, P1401, P1601 Approx. 35 to 50

•

Is not earthed between cabinet and 1, 3, 5 10M or more

NO


* 2

Check resistance of fan motor position detection circuit.

Is not coil winding between (Yellow lead) and (Pink lead) opened or shorted? Resistance: Approx. 5 to 20k

NO


* 3

Check fan motor position detection signal.

•

Using a tester, measure the voltage between CN334 and of indoor P.C. board (MCC-1402) under condition that CN333 and

CN334 are mounted and the power is turned on.

Rotate the fan slowly with hands, and check the pin voltage

• swings between 0 to 5V voltage.

Between and : 5V

CN333


(MCC-1402).

Defect Replace

CN334

–

76



[P22 error]/[1A error]

(RAV-SM800AT-E)

Are connections of CN301 and

CN300 of P.C. board correct?

YES

Does the fan rotate without trouble when handling the fan with hands under condition of removing CN301 and CN300 from P.C. board?

YES

NO

The status that the resistance values between leads below are 50 to 80 for 40W motor (ICF-140-40) and 25 to 55 for 60W motor (ICF-140-60-1) is normal.

1 2

Between (White lead) and (Black lead)

3

3

1 of motor winding of connector (CN301)

YES

NO

The status that there is

5k to 20k resistance values between

1 4 of motor position detection of connector (CN300) is normal.

YES

NO

CN301

CN300

* Connector of RAV-SM560AT-E differs from that of RAV-SM800AT-E.

CN300: Motor coil winding

CN301: Motor position detection

Normal fan motor

(Control or CDB P.C. board)

(Control P.C. board or CDB P.C. board)

Defective fan motor

NOTE :

However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.

When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.

Objective P.C. board

Fan motor winding

Motor position detection

Fan motor winding

Motor position detection

Single phase

RAV-SM560AT-E

Control P.C. board

CN300

CN301

Single phase

RAV-SM800AT-E

CDB P.C. board

CN301

CN300

–

77




Check and replace electron expansion valve.

Is operation of

4-way valve normal?

YES

NO

NO

Is flow of refrigerant by electron expansion valve normal?

YES

Is voltage applied to 4-way valve coil terminal in heating operation?

YES

NO

Check 4-way valve

Defect Replace

Is circuit cable normal?

YES

NO

Check and correct circuit.

NO

Are characteristics of TC sensor resistance value normal?


YES

Replace TC sensor.

Check CDB P.C. board.

YES

NO

Check indoor P.C. board.

Defect Replace

Check CDB P.C. board.

Defect Replace

* For RAV-SM560AT-E, check control P.C. board.

• In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error].

[F02 error]/[0d error]

Is connection of TC sensor connector

(Indoor P.C. board CN101) normal?

YES

NO

Are characteristics of

TC sensor resistance value normal?

YES

NO



(MCC-1402).

Defect Replace



Replace TC sensor.


[F01 error]/[0F error]

Is connection of TCJ sensor connector

(Indoor P.C. board CN102) normal?

YES

NO

NO


TCJ sensor resistance value normal?

YES



(MCC-1403).

Defect Replace


Replace TCJ sensor.


Is power voltage normal?

YES

NO

Improve the power supply line.

YES

Are connections of cabling/connector normal?

YES

NO

* For RAV-SM560AT-E, check RY01 on the control P.C. board.

Check and correct circuit cables.


Check and correct reactor connection.

Does RY01 relay of

IPDU operate?

NO

YES Are not

“

P26

”

and

“

14

”

errors output when an operation is performed by removing 3P connector of compressor?

YES

* Single-phase type is not provided to RAV-SM560AT-E.

Is not AC fuse fused?

NO

NO

Replace IPDU.

* Replace control P.C. board of RAV-SM560AT-E.

Replace IPDU.

* Replace control P.C. board of RAV-SM560AT-E.

Is compressor normal?

YES

NO

Check IPDU.

Defect Replace

Check rare short of compressor trouble.

Defect Replace

–

79




Are connections of cable/connector normal?

YES

NO

NO


YES

YES

Is not earthed?

NO

Is not winding shorted?

(Is resistance between windings 0.6 to 1.2 ?)

NO

YES

Is not winding opened?

NO

YES

Check IPDU P.C. board.

Defect Replace

Check and correct circuit cabling such as cabling to compressor.

Compressor error Replace



* For RAV-SM560AT-E, replace control P.C. board.

[H03 error]/[17 error]

Are cablings of power and current sensor normal?

YES

Check IPDU.

Defect Replace

NO



–

80



[F06 error]/[18 error]

Are connections of

TE/TS sensor connectors of

CDB CN604/CN605 normal?

YES

NO


Are characteristics of TE/TS sensor resistance values normal?

YES

* (For RAV-SM560AT-E, CN600 TE sensor and CN603 TS sensor)

NO

Replace TE and TS sensors.

Check CDB.

Defect Replace


[F04 error]/[19 error]

Is connection of TD sensor connector of CDB CN600 normal?

YES

NO

* (For RAV-SM560AT-E, CN601 TD sensor)

NO

Are characteristics of TD sensor resistance value normal?

YES


Replace TD sensor.

Check control P.C. board.

Defect Replace


[F08 error]/[1b error]

Is connection of TO sensor connector of CDB CN601 normal?

YES

NO

* (For RAV-SM560AT-E, CN602 TO sensor)

NO

Are characteristics of TO sensor resistance value normal?

YES


Replace TO sensor.

Check CDB.

Defect Replace


–

81



[L29 error]/[1C error]

Are connections of

CDB CN800 and CDB IPDU CN06 connectors normal?

YES

NO

YES

Was the error just after power ON determined?

NO

Are cabling/connector normal?

YES

NO


Check cabling between IPDU and CDB and connector.

IPDU P.C. board error

Defect Replace

Is there no abnormal overload?

NO

YES

NO

Is IPDU P.C. board come to closely contact with heat sink?

YES

Improve and eliminate the cause.

Correct mounting.

IPDU P.C. board error

Defect Replace

[H02 error]/[1d error]


YES

NO


YES

NO

NO


YES

Improve power line.

Check and correct circuit cabling such as cabling to compressor

(phase missing) and connector.

Is there no slackened refrigerant?

YES

NO

Does electron expansion valve normally operate?

YES

NO

Compressor lock Replace

Check TE and TS sensors. Replace

Check electron expansion valve. Replace

Check IPDU and CDB.

Defect Replace


–

82



[P03 error]/[1E error]

Is protective control such as discharge temprelease control normal?

YES

NO


YES

NO

Correct the cabling and connection of connector.

Check parts. Defect Replace

Is charged refrigerant amount normal?

YES

NO

YES

Is not abnormal overload?

NO

NO


TD sensor resistance value normal?

YES


Check and correct the charged refrigerant amount.

Improve and delete the cause

Replace TD sensor.

Check CDB.

Defect Replace


[H01 error]/[1F error]


YES

Is not abnormal overload?

NO

Is the circuit detected by current sensor normal?

YES

NO

NO

YES

Improve power line.

Improve and delete the cause.


Check IPDU.

Defect Replace


–

83




Is high-voltage protective operation by

TE sensor normal?

YES

NO

Is connection of cabling connector normal?

YES

NO

Correct connection of cabling connector.

Check TE sensor.

Defect Replace

Does cooling outdoor fan normally operate?

YES

NO

Is connection of connector normal?

YES

NO


Check TE, TC, TS sensors.

Replace electron expansion valve.

NO

NO

Does PMV normally operate?

YES

Is fan motor normal?

YES

Do not TD and TO sensors come off the detection part?

YES

NO

Replace fan motor.

Correct coming-off.


TD, TO, TC sensor resistance values normal?

YES

NO

Replace TD, TO, and TC sensors.

* Refer to Characteristics-3 and 4.

Check charged refrigerant amount.

Check liquid/gas valves.

Check abnormal overload.

Check CDB.

Defect Replace


–

84



[97 error] (Central controller)

NO

Is X, Y communication line normal?

YES

Correct communication line.

Are connections between connectors

CN02, CN03 of network adapter P.C. board and connectors CN309, CN41 of indoor P.C. board

(MCC-1402 or MCC-1403, normal?

YES

NO

NO

Is A, B communication line normal?

YES

YES

Is there no connection error of power line?

NO

YES

Is not power of source power supply turned on?

NO

YES

Did a power failure occur?

NO

Is the network address changed form remote controller?

NO

YES

YES

Is there no noise source, etc.?

NO

Can central remote controller control normally other indoor units?

Is handling of central remote controller reflected on the operation status of indoor unit?

YES

NO

(Same as others)

Check connections of A, B terminal blocks.

Correct communication line of remote controller.

Does network adapter P.C. board

LED (D01) go on?

YES

NO

Can handy remote controller control normally other indoor units?

YES

NO


Correct power cable.

Turn on the source power supply.

Clear the check code.

Eliminate noise, etc.

Check central controller.

Defect Replace

Check network adapter P.C. board and power transformer.

Defect Replace


(MCC-1402 or MCC-1403).

Defect Replace

–

85



[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal sent from the main remote controller (and central controller).

In this case, check the communication cables of the remote controllers A and B, the central control system X and Y. As communication is disabled, [E03] is not displayed on the main remote controller and the central controller. [E01] is displayed on the main remote controller and [97 error] on the central controller, respectively.

If [E03] occurs during an operation, the air conditioner stops.

[F29 error] / [12 error]

[F29 error] or [12 error] indicates detection of trouble which occurred on IC10 non-volatile memory (EEPROM) on the indoor unit P.C. board during operation of the air conditioner. Replace the service P.C. board.

* If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read/written, the automatic address mode is repeated. In this time, the central controller displays [97 error].

(Power ON)

(Approx. 3 minutes)

[SET] is displayed on main remote controller.

(Approx. 1 minute)

[SET] goes off.

LED (D02) on indoor unit P.C. board flashes with 1Hz for approx. 10 seconds.

(Repetition)

Reboot

(Reset)

[P31 error] (Sub indoor unit)

When the master unit of a group operation has detected [E03], [L03], [L07], or [L08] error, the sub unit of the group operation detects [P31 error] and then it stops. There is no display of the check code or alarm history of the main remote controller.

(In this model, the mode enters in automatic address set mode when the master unit has detected [E03], [L03],

[L07], or [L08] error.)

–

86



10-4-2. Relational Graph of Temperature Sensor Resistance Value and Temperature

Resistance

(k )

10

20

0

10 20

40

TA sensor

Caracteristics-1

30

Resistance

(k )

20

30 40

Temperature [ C]

50

TC, TCJ sensor


10

0

–10 0 10 20 30 40 50 60 70

Temperature [ C]

20

TE, TO, TS sensor

200


Resistance

(k )

(10 C or lower)

100

Resistance

(k )

(10 C or higher)

10

0

200

-10 0 10 20 30 40

Temperature [ C]

50 60 70

0

TD sensor


Resistance

(k )

(50 C or lower)

100

20

Resistance

(k )

(50 C or higher)

10

0 0

50

Temperature [ C]

100

–

87


TROUBLESHOOTING. Toshiba RAV-SM560 BT-E, RAV-SM560 XT-E, RAV-SM560 KRT-E, RAV-SM800 AT-E, RAV-SM800 KRT-E, RAV-SM800 BT-E, RAV-SM800 XT-E, RAV-SM560 UT-E, RAV-SM560 AT-E, RAV-SM800 UT-E 181 Pages

TROUBLESHOOTING. Toshiba RAV-SM560 BT-E, RAV-SM560 XT-E, RAV-SM560 KRT-E, RAV-SM800 AT-E, RAV-SM800 KRT-E, RAV-SM800 BT-E, RAV-SM800 XT-E, RAV-SM560 UT-E, RAV-SM560 AT-E, RAV-SM800 UT-E

10. TROUBLESHOOTING

10-1. Summary of Troubleshooting

10-2. Check Code List

10-3. Error Mode Detected by LED on Outdoor P.C. Board

10-4. Troubleshooting Procedure for Each Check Code

10-4-1. New Check Code/Present Check Code (Central Control Side)

*

*

*

*

*

*

*

*

10-4-2. Relational Graph of Temperature Sensor Resistance Value and Temperature

Key Features

Frequently Answers and Questions

What are the different types of indoor units available?

What is the standard capacity of the units?

What is the sound level of the outdoor unit?

Related manuals

Table of contents

TROUBLESHOOTING. Toshiba RAV-SM560 BT-E, RAV-SM560 XT-E, RAV-SM560 KRT-E, RAV-SM800 AT-E, RAV-SM800 KRT-E, RAV-SM800 BT-E, RAV-SM800 XT-E, RAV-SM560 UT-E, RAV-SM560 AT-E, RAV-SM800 UT-E 181 Pages

TROUBLESHOOTING. Toshiba RAV-SM560 BT-E, RAV-SM560 XT-E, RAV-SM560 KRT-E, RAV-SM800 AT-E, RAV-SM800 KRT-E, RAV-SM800 BT-E, RAV-SM800 XT-E, RAV-SM560 UT-E, RAV-SM560 AT-E, RAV-SM800 UT-E

10. TROUBLESHOOTING

10-1. Summary of Troubleshooting

10-2. Check Code List

10-3. Error Mode Detected by LED on Outdoor P.C. Board

10-4. Troubleshooting Procedure for Each Check Code

10-4-1. New Check Code/Present Check Code (Central Control Side)

*

*

*

*

*

*

*

*

10-4-2. Relational Graph of Temperature Sensor Resistance Value and Temperature

Key Features

Frequently Answers and Questions

What are the different types of indoor units available?

What is the standard capacity of the units?

What is the sound level of the outdoor unit?

Related manuals

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MiNi SMMS

Toshiba

RAV-SM800 XT-E

Mitsubishi Heavy Industries

QA-S SRK25QA-S

Toshiba

RAV-SP 1100UT-E

Toshiba

RBC-AS21E

Toshiba

RAS

Toshiba

RAV-SM562MUT-E

Toshiba

RAV-SM1100AT-E

Toshiba

RAV-SM 802UT-E

Philips

Hue White and Color Ambiance Επιτραπέζιο φωτιστικό Gradient Signe

Toshiba

RAV-SM 561AT-E

Toshiba

RAV-360UH-P/360AH8-P

Table of contents