TOYOTOMI FS 1060A split-system air conditioner Service Manual

Service Manual
MODEL:
FS1060A
1 Introduction and Features
Model
FS 1060A
Remarks
2 Specification and Technical Parameter
Model
Function
Rated Voltage
Rated Frequency
Total Capacity (Btu/h)
Power Input (W)
Rated Input (W)
Rated Current (A)
Air Flow Volume (m 3/h) (H/M/L)**
Dehumidifying Volume (l/h)
EER / C.O.P (W/W)
Energy Class
Model of Indoor Unit
Fan Motor Speed (r/min) (H/M/L)
Output of Fan Motor (w)
Input of Heater (w)
Fan Motor Capacitor (uF)
Fan Motor RLA(A)
Fan Type-Piece
Diameter-Length (mm)
Evaporator
Pipe Diameter (mm)
Indoor unit
Row-Fin Gap(mm)
Coil length (l) x height (H) x coil width (L)
Swing Motor Model
Output of Swing Motor (W)
Fuse (A)
Sound Pressure Level dB (A) (H/M/L)
Sound Power Level dB (A) (H/M/L)***
Dimension (H/W/D) ( mm)
Dimension of Package (L/W/H) ( mm)
Net Weight /Gross Weight (kg)
FS 1060A
COOLING
HEATING
380-415V 3N̚
50Hz
16000W
6400W
7800W
12.05A
18000W
6200(9700)W
7800(11300)W
12.05(17.25) A
2000
5.2
2.5
/
FS 1060Ai
550/500/450 r/min
130W
3500W
6uf
1.59A
Centrifugal fan – 1
ij369X 180.5
Aluminum fin-copper tube
ĭ7
3-1.4
914.4X471X42.2
SM016
4W
PCB 5.0A
58/53/50
/
540/1750/380
2000/720/515
60/85
Model of Outdoor Unit
Compressor Manufacturer/trademark
Compressor Model
Compressor Type
L.R.A. (A)
Compressor RLA(A)
Compressor Power Input(W)
Overload Protector
Throttling Method
Starting Method
Working Temp Range (ć)
Condenser
Pipe Diameter (mm)
Rows-Fin Gap(mm)
Coil length (l) x height (H) x coil width (L)
Fan Motor Speed (rpm)
Output of Fan Motor (W)
Outdoor Fan Motor RLA(A)
unit Fan Motor Capacitor (uF)
Air Flow Volume of Outdoor Unit
Fan Type-Piece
Fan Diameter (mm)
Defrosting Method
Climate Type
Isolation
Moisture Protection
Permissible Excessive Operating
Pressure for the Discharge Side(MPa)
Permissible Excessive Operating
Pressure for the Suction Side(MPa)
Sound Pressure Level dB (A) (H/M/L)
Sound Power Level dB (A) (H/M/L)
Dimension (W/H/D) ( mm)
Dimension of Package (L/W/H)( mm)
Net Weight /Gross Weight (kg)
Refrigerant Charge (kg)
Length (m)
Gas additional charge(g/m)
Connec
Liquid Pipe (mm)
tion Outer Diameter
Gas Pipe (mm)
Pipe
Height (m)
Max Distance
Length (m)
FS 1060Ao
Dallian SANYO / SANYO
C-SBN453H8D
SCrOll
67A
9.77A
5750W
UP18
Capillary
Capacitor
-7 ćİTİ45ć
Aluminum fin-copper tube
ĭ9.52
3-1.8
745X1219.2X66
940 rpm
92W
0.42
4uf
5000 m3/h
Axial fan -1
ĭ450X156
Auto defrost
T1
I
IP24
3.9
2.21
61
/
950X1250X412
450X1110X1280
115/126
R410A/5.0Kg
5M
100g//m
ĭ12(1/2")
ĭ19(3/4")
30
30
If the above specification's parameter has been changed, please refer to the nameplate.
3 Parts' Name
air outlet
display screen
air discharge
panel
remote controller
swing display screen
timer
air intake panel
air intake
temperature
fan speed
mode
sealing tape
ON/OFF
air intake
connecting pipe
drain pipe
air discharge
4 Outline and Installation Dimension
Indoor unit's outline and installation size
unit:
rear
Pipe side should be at least 30cm.
front
Pipe side should be at least 30cm.
Outdoor unit's outline and installation size
unit:
more than
more than 600
more than 600
more than 600
bolt
nut
5
If above electric circuit diagram has been changed, please refer to it on the body.
6
Controller's function manual and operation method
1 Temperature Parameters
‹ Indoor preset temperature (Tpreset)
‹ Indoor ambient temperature (Tamb.)
2 Basic Functions
Once the unit is started under any modes, the compressor will keep running within 6 minutes. Once the unit's
stopped, it cannot be restarted until after 3-minute lag.
(1) Cooling Mode
Cooling Conditions and Process
When Tamb.•Tpreset+1ć , the unit will run under cooling mode, in which case the compressor and outdoor fan will
EHstarted, and the indoor fan will run at preset speed.
When T amb”Tpreset -1ć, the unit will be stopped under cooling mode, in which case the compressor and outdoor fan will
be stopped, while the indoor fan will run at preset speed.
When Tpreset -1ć<T amb.< Tpreset +1ć, the unit will maintain its original operating status.
¾ Under cooling mode, the temperature can be set within a range from 16 to 30ć. The initial value is 25ć.
The outdoor fan runs at high speed.
Tpreset
Tamb.
start cooling
original running status
Tpreset
stop cooling
mins
mins
mins
compressor
hign speed
hign speed
outdoor fan
indoor fan
set fan speed
run
stop
Dry Mode
Drying Conditions and Process
When T amb.•Tpreset +2ć , the unit will run under cooling mode, in which case the compressor and outdoor fan will
started, and the indoor fan will run at low speed.
When Tpreset -2ć”T amb.”Tpreset +2ć , the compressor, indoor fan and outdoor fan will run 6 minutes and stop 4 minutes
repeated cycle, while the indoor fan will run at low speed.
When T amb.< Tpreset -2ć, the compressor, outdoor fan and indoor fan will be stopped.
¾ Under this mode, the temperature can be set within a range from 16 to 30ć. The initial value is 25ć.
The outdoor fan runs at high speed.
Tamb.
cooling
Tpreset
drying
Tpreset
stop running
mins
mins
mins
mins
compressor
outdoor fan
indoor fan
high speed
low speed
run
high speed high speed
low speed
low speed
stop
Heating Mode
Heating Conditions and Process
When Tamb. Tpreset- 1 , the unit is running in heating mode. Meawhile, the reversing valve, compressor and the
outdoor fan start running. When the unit is turned on to turn to heating mode or switch to heating mode from other
modes, the four-way valve start running after the compressor is started for the first time in 20s, and the indoor fan will
start running after 90s delayed at most.
If T amb.•Tpreset +1ć , the compressor and outdoor fan will be stopped, while reversal valve will remain energized and the
indoor fan will run at low speed for 10s and then it will stop running.
When Tpreset -1ć<T amb.< Tpreset +1ć, the unit will maintain its original operating status.
Under heating mode, the temperature can be set within a range from 16 to 30ć. The initial value is 25ć.
If the unit is switched off under heating mode or switched from heating mode to another mode, the 4-way valve will
be de-energized after 2-minute lag.
stop heating
Tpreset
original running status
Tpreset
start heating
mins
mins
mins
compressor
outdoor fan
low speed
low speed
indoor fan
o
run
stop
Defrosting Conditions and Process
When detecting any frost in condenser, the system will start defrosting( The auxiliary electric heater,if any, will be stopped firstly, and then
start defrosting after 1 min. ),in which case the compressor, indoor fan and outdoor fan will be stopped simultaneously, the 4-way valve
will stop in 3S and the compressor will be started in another 30S.(Defrost will not be detected during high temperature protection).When
detecting the frost in condenser is removed, the defrost is completed, in which case the compressor stops, while the 4-way valve runs.
30S later, the compressor starts running,outdoor fan runs,and the indoor fan will run in 90S at least.
Auxiliary electric heater working condition
When indoor fan is runnng and Tevap. is lower than Tamb. and Tamb. Tpreset-2 , auxiliary electric heater will start running.
When indoor fan isn't running, or Tevap. is high, or Tamb. is high, the auxiliary electric heater will stop running. After the auxiliary
electric heater is stopped, it can be restarted only after 2min delayed.
outdoor fan is running at low fan speed;
outdoor fan is running at high fan speed;
outdoor
outdoor
outdoor
Outdoor fan keep the original running status.
Fan Mode
Indoor fan will run at preset speed
Auto Speed
Low Speed
Mid. Speed High Speed
¾The temperature can be set within a range from 16 to 30 . The initial value is 25 ć
AUTO Mode
Under this mode, the system will automatically select its running mode (cooling, dry, heating or fan) with the change
of ambient temperature.
¾ Once a mode is started, the unit will run at least 30 seconds before it can turn to other running status under
auto mode according to the ambient temperature.
Other Control
Sleep Function
If the controller is under cooling or dry mode, the preset temperature will be increased by 1ć one hour
after running under sleep mode and will be increased by another 1ć after two hours. The temperature will increased
by 2ć within two hours. After that, the unit will run at this temperature.
Tpreset
setting temperature Tpreset
Tpreset
Tpreset
1hr
2hrs
more than 2 hrs
If the controller is under heating mode, the preset temperature will be decreased by 1ć one hour after running under
sleep mode and will be decreased by another 1ć after two hours. The temperature will decreased by 2ć within two
hours. After that, the unit will run at this temperature.
1hr
2hrs
more than 2 hrs
Tpreset
Tpreset
setting temperature Tpreset
Tpreset
No sleep function under fan mode or auto mode.
Timer function
Timer ON
TIMER ON function can be set when the unit is at off mode. At the time for Timer ON, the controller will run under
preset mode. The interval of time setting is 0.5h and can be set within 0.5-24hr.
Timer OFF
TIMER OFF function can be set when the unit is at on mode. At the time for Timer OFF, the system will be stopped.
The interval of time setting is 0.5h and can be set within 0.5-24hr .
Swing Control
You can control its ON and OFF by using the swing button. The swing is valid only when the indoor fan is running.
Buzzer
When the controller is energized or receives correct signal from press button, the buzzer will give out a beep.
Auto fan speed control of indoor fan
In this mode, indoor fan will select the fan speed(high, medium, low) according to the change of ambient temperature.
Once the fan speed is started, it can be switched according to the condition only after running for 30s.
Indicator control
The indicator will make a blink when the controller is just energized. The indicator will blink under any condition as below:
Defrosting; Antifreeze Protection; Compressor high pressure protection; Compressor low pressure protection;Exhaust
pipe high temp. protection; forcible cooling; forcible heating.
Power-off Memory
Memory content:mode, swing,timer,preset temp.,preset fan speed.
After the power is failed, if it's re-energized ,the unit will automatically start to run by the memory of last time.
Button
MODE button
Press MODE key to select and display the run mode as below:
FAN button
Press FAN key to select and display the run mode as below:
AUTO, low, medium, high
¾ Fan speed is not adjustable under dry mode.
TEMP setting button (TEMP and TEMP )
1)Press TEMP. or TEMP. each time, the preset temp. will increase or decrease 1 and the range of adjustment is
16-30 .Under AUTO mode, this button doesn't work.
2) Press the temp. buttons and simultaneously,all the buttons function on the display screen willl be shielded .If press
the two keys once again, the shield will be released.
(4) Timer Button
You can press this button to set the time for AUTO ON when the unit is stopped, or set the time for AUTO OFF when the
unit is running. Each press of TIMER button will increase the time setting by 0.5h. If you keep holding down this button, the
time setting will automatically increase by 0.5h every 0.5s. The setting range is 0.5-24hr.
(5) Swing button
Press SWING button once, SWING will be displayed. If indoor fan has been in operation, the swing motor will work. If press
this button again, SWING will be disappeared and swing motor will be stopped.
(6) ON/OFF button
This button is controlling ON/OFF of the controller. After each pressing, the ON/OFF will be switched once.
5 Protection
(1) Indoor Antifreeze Protection
When the unit is cooling under cooling or dry mode . If it is detected that the system is under antifreeze protection, the indicator
will blink and E2 will be displayed, in which case the compressor and the outdoor fan will stop running, while indoor fan and
swing motor will maintain the original status. When antifreeze protection is released, the indicator will be black, LCD will
resume its display and the controller runs in preset mode.
The button is not shielded under antifreeze protection.
(2) Compressor High-pressure Protection
If high-pressure protection is detected, the unit will close all loads and shield all buttons and remote-control signal,
meanwhile, the indicator will blink and E1 will be displayed.
Upon detecting that the compressor high-pressure protection is released, the indicator will still blink and E1 wil be
displayed, in which case you have to press ON/OFF button to switch off the unit before you can clear E1 display and turn
the indicator. Press ON/OFF button to resume the operation.
(3) Compressor Low-pressure Protection
1.After the compressor is started for 3mins, if it is detected for 3 minutes successively that the low-pressure switch is broken,
the complete unit will be stopped and the indicator will flicker. In 3 minutes, the unit will restore running automatically. If
low-pressure switch protection occurs 2 times successively, the indicator flickers and E3 is displayed ,and the unit cannot
restore running automatically, so as to remind the user of air leakage. Press ON/OFF button to switch off the unit and press
it again to restore operation.
2.Under defrosting mode, low-pressure switch signal can not be detected,which should be done after defrosting finished 10
minutes later.
3.From the controller, you can press down SWING button and FAN SPEED button simultaneously to shield the detection
of low pressure switch signal for purpose of air collection. Detection will be resumed automatically after 6 minutes,or you
can resume detection by pressing ON/OFF button to switch off the unit and pressing it again to start the unit.
4.Under heating mode,if the outdoor ambient temp. is lower than 0
or equal to 0
,this detection will be shielded.
5.Under heating mode,if compresoor is running while outdoor fan is stopped(Hi-temp. protection),the detection will be
shield till the outdoor fan resumes running.
6.If it is detected that the low-pressure switch is off when the compressor is stopped, the complete unit will be stopped,
the indicator will blink and E3 will be displayed, in which case the unit cannot be restarted automatically. You have to
press ON/OFF button to switch off the unit and press this button again to restart.
(4) Discharge Pipe High-temp. Protection
After the compressor is started, if the discharge temperature is too high or exhaust sensor is in short circuit (or open
circuit), the indicator will flicker and the unit will be stopped when the indoor ambient temperature reaches the preset
value.After the compressor is stopped for 3 mins, the complete unit will be restarted when the discharge
temperature is resumed to normal range.
If above phenomena occurs twice continuously, the complete unit cannot be restarted automatically, the indicator will
blink and E4 will be displayed. Press ON/OFF button to switch off the unit and press it again to switch on the unit. If the
discharge temperature is normal, the unit will run under preset mode.
If turn on the unit in heating mode or turn to heating mode from other modes, the air discharge temperature will shield
1min for protection when turning on the unit or the compressor is started up for the first time.
Indoor ultra-high temp. protection
Under heating mode, if it is detected that the temp. of evaporator pipe is too high,the outdoor fan will stop runing(defrosting
won't be detected),if temp. gets right, outdoor fan will start running(defrosting will be detected).
Low-voltage Protection
When the compressor is running,and it is detected that the current exceeds specified value,the unit will stop running when
indoor ambient temperature reaches preset temp. After the compressor has stopped for 3 mins, the unit will automatically
resume its original running status. If there are more than 6 times protection (If the compressor has stopped for more than
6mins, the times of protection will be cleared),their indicator light flickers and displays E5,and the unit can not resume its
original running status. It needs to press the ON/OFF button to stop the unit and repress the button to resume operation.
Malfunction and Protection Code
E1
Compressor High-pressure Protection
Indoor Antifreeze Protection
E2
Compressor Low-pressure Protection
E3
E4
Exhaust Pipe High-temp. Protection
E5
Low-voltage Protection
Disassembly procedure of outdoor unit
Operating Procedures / Photos
1.Disassemble grill net
Unscrew the support chassis between rear
plate and valve and 6 tapping screws on
condenser side plate, and then remove the grill net.
grill net
screw
screws
2.Disassemble the top cover plate
Unscrew the tapping screws around top cover plate
and pull it upward, then remove the top cover plate.
3.Disassemble the front plate
Unscrew 3 tapping screws on front plate and pull it
upward, then remove the front plate.
Operating Procedures / Photos
4.Disassemble electric box
Unscrew 2 screws on electric box and pull out
the signal power wire and the power cord as showed in Fig.,
and pull it downward, then remove the electric box
screws
signal power wire
5.Disassemble panel
Unscrew 2 screws used for fixing the panel, pull
the panel downward and pull out the signal
wire, then remove the panel.
screws
6.Disassemble air damper and the mounted plate
of water tray
Unscrew 10 screws around the air damper, and
then remove the air damper.
Unscrew 2 screws on the mounted plate of water
tray and then remove it.
screw
air damper
mounted plate of water tray
Operating Procedures / Photos
screws
7.Disassemble air-out Assy
Unscrew the 3 screws used for connecting air
outlet and top cover and the 2 screws used for
connecting left plate and right plate
air-out assy
air-out assy
screws
8.Disassemble chassis
chassis
Unscrew the screws around the chassis and pull it
outward, then disassemble the chassis.
screw
Operating Procedures / Photos
9.Disassemble lower platen of casing
Unscrew the 2 screws on the lower platen of
casing and pull it upward, then you can remove
the lower platen of casing
lower platern of casing
10.Disassemble top cover
Unscrew the screws around the top cover and then
remove the top cover.
top cover
screw
11.Disassemble air damper and the mounted plate
of water tray
Press the diversion circle by hand to rotate it in clockwise
direction and lift it to remove the diversion circle. As shown
in Fig. 12. Unscrew the nut on blade by wrench and lift it
diversion circle
upward to remove the blade.
screws
Operating Procedures / Photos
nut
blade
12.Disassemble mounted plate of evaporator
Unscrew the 2 screws on the mounted plate of
evaporator and then remove it.
mounted plate of evaporator
13.Disassemble the left side and right side plates
Unscrew the screws used for connecting the left
and right side plates and rear plate, and then
remove it.
screw
screws
Operating Procedures / Photos
14.Disassemble casing
Unscrew the screws used for fixing the casing and
then remove the casingDŽ
casing
screw
15.Disassemble evaporator
Unscrew the 2 screws used for fixing evaporator
and then remove evaporator. Unscrew the 4 screws
used for fixing the electric heating and then remove it.
screws
evaporator
electric heating parts
16.Disassemble motor
Unscrew the screws used for fixing the motor and
then remove it.
motor
screw
Operating Procedures / Photos
4.Disassemble the outer case
Unscrew the screws around the outer case and then
remove it.
screw
outer case
5.Disassemble electric box
Unscrew the screws around the electric box and then
remove the electric box assy.
screws
6.Disassemble right side plate
Unscrew the screws around the right side plate assy
and the right side plate assy.
right side panel
screw
Operating Procedures / Photos
7.Disassemble axial blade
nut
Disboard the nut on blade with wrench and then
remove the blade.
nut
motor
8.Disassemble outdoor motor
Unscrew 4 tapping screws used for fixing the motor
pull out the leading wire and remove the motor.
Unscrew 2 tapping screws used for fixing the motor
support, lift it upward and then remove the motor
support.
fix screw for motor
motor support
fxing screw
9. Disassemble four-way valve
Unscrew the fixing nut of the four-way valve coil and
remove the coil. Wrap the four-way valve with
wet cotton and unsolder the 4 weld spots connecting
the four-way valve to take it out. Welding process
should be as quick as possible and keep wrapping
cotton wet all the time. Be sure not to burn out the
leading wire of compressor.
four-way valve
Operating Procedures / Photos
10. Disassemble valve
Unscrew 2 screws used for fixing the valve and
unsolder its connection pipe, the remove the valve.
gas valve
screw
screws
liquid valve
11.Disassemble capillary
Unsolder the weld spot used for connecting capillary
and other pipes and then remove the capillary.
capillary
12.Disassemble compressor
Unscrew 4 foot screws of compressor and unsolder
the connection pipes, then remove the compressor.
foot nut
8 Assembly Drawing and Parts List
Assembly drawing for indoor unit parts
Parts list for indoor unit
No
Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
Left Side Plate Sub-Assy
Rear Plate Sub-Assy
Top Cover Sub-Assy
Right Side Plate Sub-Assy
Evaporator Assy
Water Tray Sub-Assy
Temperature Sensor
Electric Heater Tube
Breakwater Sub-Assy
Propeller housing press plate sub-assy
Rear Grill
Air Guard Assy
Front Panel Assy
Air Outlet Assy
Display
crank
Synchronizing Motor
Air Louver
Filter Sub-Assy
Air Intake panel Assy
Electric Box Cover Sub-Assy
Fuse
Relay
Relay
Main Board
Capacitor CBB61
Transformer
Terminal Board
Electric Box Assy
Protective covering
Diversion Circle
Propeller Housing Sub-assy
Centrifugal fan
Fan Motor
Chassis
Rear Cover
Baffle Plate
Connecting Cable
Connecting Cable
Connecting Cable
Drain Pipe
Part Code
FS 1060Ai
01304305
01304177
22244470
01304179
01004283
12414471
39000171
32004053
01364483D
01364471
01474034
01364496
20004386
2000447001
30543070
10564201
15214215
10514452
11144471
200044711
01404403
46010013
44020331
44020345
30033066
33010037
43110237
42010258
01404334
01474027
10374202
12104470
10314401
15014431
22224471
2224422002
2611408802
40030311
40030309
40030310
05230022
Qty
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
6
1
1
1
1
3
7
1
1
1
1
1
1
1
1
1
1
1
3
3
2
1
1
1
Assembly drawing for outdoor unit
Parts list of outdoor unit
No
Description
1
Panel Grille
Part Code
FS 1060Ao
22414102
2
3
4
Cabinet
Rear Grill
Top Cover
01435436
01475432
01255472
1
1
1
5
6
7
Rear Side Plate Sub-Assy
Handle
Valve Support Sub-Assy
01303712
26235253
01715001
1
2
1
8
9
10
Chassis Sub-assy
Front Side Plate
Sensor supprt
01205472
01305431
24211341
1
1
1
11
12
13
Axial-flow Fan
Condenser Assy
Motor Support Sub-Assy
10335253
01105341
01705471
2
1
1
14
15
16
Fan Motor
Mid-clapboard sub-assy
Inhalation Tube Sub-Assy
15015451
01235473
03639066
2
1
1
17
18
19
4-way Valve Assy
4-way Valve Accessary
Compressor and fittings
03025268
430004002
00129052
1
1
1
20
21
22
Assistant Capillary Sub-Assy
Cut-off Valve 3/4(R410A)
Electric heater(compressor)
03005283
07130212
76515404
1
1
1
23
24
Condenser support sub-assy
Temperature Sensor
01894148
39000129
1
1
25
26
27
Air-out Temp. Sensor
Outdoor Tube Sensor
Electric Box Assy
39000163
39000127
014054709
1
1
1
28
29
30
AC Contactor
Over Current Protector
Transformer
44010236
46020103
43110242
1
1
1
31
32
33
Relay
Terminal Board
Capacitor CBB61
44020332
42010258
33010013
1
2
2
34
35
36
Phase Reverse Protector
Relay
Terminal Board
46020052
44020369
42011103
1
1
2
37
38
39
Drainage Connecter
Drainage Plug
Pressure Protect Switch
06123401
06813401
460200061
1
2
1
40
Low pressure switch
46020007
1
Qty
2
9 Troubleshooting
When setting the circuit breaker at "ON", it will be
tripped off immediately
Ground and measure the insulation
resistance, confirm whether the A/C
is leaking
Breaker is tripped over
or the fuse is burnt out
When the A/C is turn to "ON", the circuit breaker
will be tripped off in a few minutes
Check the circuit breaker
No power supply
Check the power supply circuit
The power plug hasn't been inserted well
or poor connection
Wrong wire connection between outdoor unit
and indoor unit
A/C
can't
be
started
up
Check the remote controller
Fuse of controller is burnt out
Replace the fuse of controller
Indoor unit and outdoor
unit can't be started up
Whether the outlet wire of transformer
is firm, and whether there's output volatage
Setting temperature is unreasonable
Whether ccoooing(heating) load is
inapproprite
Flow malfunction of
refrigerant
Check whether the wire connection is wrong
according to the electric circuit diagram , and
connect it correctly
Malfunction of remote controller
Whether the wire between stronge electric plate
and weak electric plate is connected firmly
Poor
(heating)
or
cooling
Check and insert the plug well
Connect the wire firmly
Please connect the wire firmly and
check the output volatege
Adjust the setting temperature
Check the forecast cooling(heating)load
Malfunction of four-way valve
Replace four-way valve
Refrigerant volume is insufficient
Fill with refrigerant
Malfunction of compressor
Replace compressor
Flow of valve is insufficient
Increase the valve flow
Clean the filter
Filter is blocked
Air circulation is
insufficient
Fan speed is set too low
Installation position for the outdoor
unit is improper
Set the fan speed to high or medium
The ventilation for the outdoor unit should be good.
You can install the rain-proof and sun-proof board.
Poor
(heating)
or
cooling
Outdoor's unit filter is blocked
Clean filter periodically
Outdoor unit's heat exchanger is blocked
Clean the dust accumulated on the surface of
heat exchanger
There's leakage between high voltage
and low voltage in compressor
Part of compresser is blocked
Refrigerant is leaking
One-way valve of outdoor unit is blocked
Indoor fan's motor is burnt our or its wire is broken
When setting fan
blowing, the fan can't
run
Repair it or replace fan's motor
Fan's capacitor is open circuit or damaged
Replace fan's capacitor with the same model and
specification
Replace the relay
Relay hasn't been connected well
Outdoor fan's motor is broken
Wrong wire connection
Outdoor fan's capacitor is damaged
Malfunction of the compressor
In cooling or heating
mode, the outdoor fan
is running, while the
compressor doesn't run
Replace the one-way valve
Connect the wire correctly according to the electric
circuit diagram
The setting temperature is improper
In cooling or heating
mode, the compressor
is running, while
outdoor fan don't run
Check the leakage and add refrigerant
Wrong wire connection
Relay coil's wire is broken
In cooling or heating
mode, the outdoor unit
and the compressor
don't run.
Replace the compressor
Adjust the setting temperature
Replace the fan's motor
Connect the wire correctly according to the electric
circuit diagram
Replace the fan's capacitor
Replace the compressor
Rotating capacitor of compressor is broken
Replace the capacitor
Voltage is a little low or high
Suggest to equip with the voltage regulator
Wrong wire connection
Connect the wire correctly according to the electric
circuit diagram
Replace the compressor
Drain pipe is blocked or broken
Replace the drain piple
The junction of the refrigerant pipe hasn't been
wrapped well
Wrap it again and wrap it tightly
Leakage
The fan of indoor unit will contact other parts
There are foreign substances in the indoor unit
Abnomal sound and
vibration
Adjust the fan's position
Take out the foreign substances
Abnormal vibration for the compressor
Adjust the compressor's support mat and fasten the
loose bolt
The pipes for outdoor unit are in collision
with each other
Separate the collision pipes
Metal plates in the unit are in collision with
each other.
1. Tighten the screws
2. Stick the damping plaster among metal plates
The blade of outdoor unit is in collision
with the outer case
Adjust the blade's position
There is abnormal sound in the compressor
Replace the compressor
There is abnormal electromagnetic sound in
the four-way valve when heating
Electromagnetic valve is short-circuit ; please
replace it.
Notice: there's no malfunction in respect of heating for cooling only units.