Error Codes
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Troubleshooting
1. Press the soft key for help with the active error.
Troubleshoot Errors
There are three types of errors that can occur. Errors
are indicated on the display as well as by the light
tower (optional).
Error
Description
Alarms
A parameter critical to
the process has reached
a level requiring the
system to stop. The
alarm needs to be
addressed immediately.
Deviations
A parameter critical
to the process has
reached a level requiring
attention, but not
sufficient enough to
stop the system at this
time.
Advisories
A parameter that is
not immediately critical
to the process. The
advisory needs attention
to prevent more serious
issues in the future.
Note
Press
or
to return to the
previously displayed screen.
2. The QR code screen will be displayed. Scan
the QR code with your smartphone to be sent
directly to online troubleshooting for the active
error code. Otherwise, manually navigate to
http://help.graco.com and search for the active
error.
See Error Codes, page 13 for causes and solutions
to each error code.
To troubleshoot the error:
3. If no internet connection is available, see
Error Codes, page 13 for causes and solutions
for each error code.
Error Codes
Note
When an error occurs be sure to determine the code before resetting it. If you forget which error code
occurred, see the Errors screen to view the last 200 errors, with date, time, and description.
333024G
13
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
A1NM
MCM
A4DA
A4DB
A4DH
Heater A
Heater B
Hose
Type
Description
Cause
Solution
Low Motor Current
Loose/broken
connection.
Check for loose wire
terminations at MCM motor
connector.
Bad Motor.
Disconnect motor output
connector from MCM.
Confirm less than 8 ohms
resistance between each
pair of motor power leads
(M1 to M2, M1 to M3, M2 to
M3). If any readings greater
than 8 ohms, check motor
wiring for damage and/or
loose terminations.
Short circuit in
heater wiring.
Check wiring for touching
wires.
Bad Heater.
Confirm resistance of
heater. Heater resistance
should be 18–21 Ω for
each heater element, 9–12
Ω combined for 10 kW
systems, and 6-8 Ω for
15 kW systems. If out of
tolerance, replace heater
element.
Short circuit in
heater wiring.
Check wiring for touching
wires.
Bad Heater.
Confirm resistance of
heater. Heater resistance
should be 9-12 Ω for 10
kW systems and 6-8 Ω for
15 kW systems. If out of
tolerance, replace heater.
Short circuit in
hose wiring.
Check continuity of
transformer windings.
Normal readings are about
0.2Ω on both primary and
secondary. If reading is 0Ω
replace transformer.
High Current A
High Current B
High Current Hose
Check for shorts between
the primary winding and the
support frame or enclosure.
14
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
A4NM
MCM
Type
Description
Cause
Solution
High Motor Current
Short circuit of
motor wiring.
Check wiring to the motor
to ensure no bare wires are
touching and that no wires
are shorted to ground.
Motor will not
rotate.
Remove pump gear
housings from motor
and check that motor shaft
rotates freely in direction
indicated on motor housing.
Damaged gear
train.
Check pump gear trains
for damage and repair or
replace as necessary.
Chemical pump is
stuck.
Repair or replace chemical
pump.
A7DA
Heater A
Unexpected Current
A
Shorted TCM
If error cannot be cleared
or regenerates consistently,
replace module.
A7DB
Heater B
Unexpected Current
B
Shorted TCM
If error cannot be cleared
or regenerates consistently,
replace module.
A7DH
Hose
Unexpected Current
Hose
Shorted TCM
If error cannot be cleared
or regenerates consistently,
replace module.
333024G
15
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
A8DA
Heater A
A8DB
A8DH
CACM
16
Heater B
Hose
MCM
Type
Description
Cause
Solution
No Current A
Tripped circuit
breaker.
Visually check circuit
breaker for a tripped
condition.
Loose/broken
connection.
Check heater wiring for
loose wires.
Tripped circuit
breaker.
Visually check circuit
breaker for a tripped
condition.
Loose/broken
connection.
Check heater wiring for
loose wires.
Tripped circuit
breaker.
Visually check circuit
breaker for a tripped
condition.
Loose/broken
connection.
Check heater wiring for
loose wires.
Module does not
have software.
Insert a system token into
the ADM module and cycle
the power. Wait until the
upload is complete before
removing the token.
Dial set to wrong
position.
Ensure the MCM dial is set
to the correct position: 2 for
E-30, 3 for E-XP2
No 24 VDC supply
to module.
Green light on each module
should be lit. If green light is
not lit, check to make sure
each CAN cable connection
is tight. Verify the power
supply is outputting 24
VDC. If not, check power
supply wiring. If wiring is
okay, replace the power
supply.
Loose or broken
CAN cable.
Check the CAN cables
running between GCA
modules and tighten of
needed. If the problem
still persists move each
cable around the connector
and watch the flashing
yellow light on the GCA
modules. If the yellow light
stops flashing, replace the
CAN cable.
No Current B
No Current Hose
MCM Communication Error
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
CACT
TCM
DADX
MCM
Type
Description
Cause
TCM Communication Module does not
have software.
Error
Pump Runaway
Solution
Insert a system token into
the ADM module and cycle
the power. Wait until the
upload is complete before
removing the token.
No 24 VDC supply
to module.
Green light on each module
should be lit. If green light is
not lit, check to make sure
each CAN cable connection
is tight. Verify the power
supply is outputting 24
VDC. If not, check power
supply wiring. If wiring is
okay, replace the power
supply.
Loose or broken
CAN cable.
Check the CAN cables
running between GCA
modules and tighten of
needed. If the problem
still persists move each
cable around the connector
and watch the flashing
yellow light on the GCA
modules. If the yellow light
stops flashing, replace the
CAN cable.
Flow rate is too
large.
Mix chamber too large for
system selected. Use mix
chamber rated for system.
Ensure the system has
chemical and the feed
pumps are operating
correctly.
No material in pumps.
Verify pumps are supplying
chemical. If necessary,
replace or refill drums.
Inlet ball valves are closed.
Open ball valves.
333024G
17
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
DE0X
MCM
18
Type
Description
Cause
Solution
Cycle Switch Error
Faulty or missing
cycle switch.
Check wiring between cycle
switch and MCM, Port 12.
Switch
disconnected
Measure resistance
between pin 3 and 4
at connector. Normal
resistance is 0.10 ohms.
Missing or out of
place cycle switch
magnet.
Check presence and
position of cycle switch
magnet on output crank
arm.
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
EVCH
Description
Cause
Solution
ADM
Manual Hose Mode
Enabled
Manual hose mode
has been enabled
in System Setup
screen.
Install a functioning fluid
temperature sensor (FTS)
on the hose. Manual hose
mode will automatically turn
off.
EAUX
ADM
USB Busy
USB drive has
been inserted to
the ADM.
Do not remove USB drive
until download/upload is
complete.
EVUX
ADM
USB disabled
USB
download/uploads
are disabled.
Enable USB download/uploads on the Advanced
Setup screen before inserting a USB drive.
F9DX
MCM
High Pressure/Flow
Cutback
Mix chamber is
too large for set
pressure.
Reference the pressure
flow curves and select a tip
size that is the correct size
for the set pressure.
H2MA
Heater A
Low Frequency A
Line frequency is
below 45 Hz
Ensure line frequency of
incoming power is between
45 and 65 Hz.
H2MB
Heater B
Low Frequency B
Line frequency is
below 45 Hz
Ensure line frequency of
incoming power is between
45 and 65 Hz.
H2MH
Hose
Low Frequency Hose Line frequency is
below 45 Hz
Ensure line frequency of
incoming power is between
45 and 65 Hz.
H3MA
Heater A
High Frequency A
Line frequency is
above 65 Hz
Ensure line frequency of
incoming power is between
45 and 65 Hz.
H3MB
Heater B
High Frequency B
Line frequency is
above 65 Hz
Ensure line frequency of
incoming power is between
45 and 65 Hz.
H3MH
Hose
High Frequency
Hose
Line frequency is
above 65 Hz
Ensure line frequency of
incoming power is between
45 and 65 Hz.
K8NM
MCM
Locked Rotor Motor
Motor will not
rotate.
Remove pump gear
housings from motor
and check that motor shaft
rotates freely in direction
indicated on motor housing.
Damaged gear
train.
Check motor/pump gear
trains for damage and repair
or replace as necessary.
Chemical pump is
stuck.
Repair or replace chemical
pump.
333024G
Type
19
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
L1AX
ADM
Type
Description
Cause
Solution
Low Chemical Level
A
Low material level.
Refill material and update
drum level on ADM
Maintenance screen.
Alarm can be disabled on
the System Setup screen.
L1BX
ADM
Low Chemical Level
B
Low material level.
Refill material and update
drum level on ADM
Maintenance screen.
Alarm can be disabled on
the System Setup screen.
MMUX
USB
Maintenance Due USB
Insert a USB drive into the
USB logs have
ADM and download all logs.
reached a level
where data loss
will occur if logs are
not downloaded.
P0AX
MCM
Pressure Imbalance
A High
Pressure
difference between
A and B material
is greater than the
defined value.
Ensure material flow is
equally restricted on both
material lines.
Pressure
imbalance is
defined too low.
Ensure that the pressure
imbalance value, on the
System Setup screen, is at
an acceptable maximum
pressure to prevent
unnecessary alarms and
abort dispenses.
Out of material.
Fill tanks with material
Fluid leaking from
heater inlet rupture
disk.
Check if heater
and PRESSURE
RELIEF/SPRAY valve are
plugged. Clear. Replace
rupture disk. Do not replace
with a pipe plug.
Feed system
defective.
Check feed pump and
hoses for blockage. Check
that feed pumps have
correct air pressure.
20
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
P0BX
MCM
P1FA
P1FB
P2FA
333024G
MCM
MCM
MCM
Type
Description
Cause
Solution
Pressure Imbalance
B High
Pressure
difference between
A and B material
is greater than the
defined value.
Ensure material flow is
equally restricted on both
material lines.
Pressure
imbalance is
defined too low.
Ensure that the pressure
imbalance value, on the
System Setup screen, is at
an acceptable maximum
pressure to prevent
unnecessary alarms and
abort dispenses.
Out of material.
Fill tanks with material
Fluid leaking from
heater inlet rupture
disk.
Check if heater
and PRESSURE
RELIEF/SPRAY valve are
plugged. Clear. Replace
rupture disk. Do not replace
with a pipe plug.
Feed system
defective.
Check feed pump and
hoses for blockage. Check
that feed pumps have
correct air pressure.
Inlet pressure
lower than defined
value.
Ensure that inlet pressure
to the pump is sufficient.
Value defined too
high.
Ensure that the low
pressure alarm level
defined on the System
Setup screen is acceptable.
Inlet pressure
lower than defined
value.
Ensure that inlet pressure
to the pump is sufficient.
Value defined too
high.
Ensure that the low
pressure alarm level
defined on the System
Setup screen is acceptable.
Inlet pressure
lower than defined
value.
Ensure that inlet pressure
to the pump is sufficient.
Value defined too
high.
Ensure that the low
pressure alarm level
defined on the System
Setup screen is acceptable.
Low Inlet Pressure A
Low Inlet Pressure B
Low Inlet Pressure A
21
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
P2FB
MCM
P4AX
MCM
Type
Description
Cause
Solution
Low Inlet Pressure B
Inlet pressure
lower than defined
value.
Ensure that inlet pressure
to the pump is sufficient.
Value defined too
high.
Ensure that the low
pressure alarm level
defined on the System
Setup screen is acceptable.
System
pressurized before
allowing heat to
reach setpoint.
Pressure in the hose and
pumps will increase as the
system heats up. Turn on
heat and allow all zones
to reach the temperature
setpoint before turning on
the pumps.
Bad pressure
transducer.
Verify the ADM pressure
reading and the analog
gauges at the manifold.
High Pressure A
E-XP2 system
Alarm level is lower for E-30
configured as E-30. than for E-XP2. Ensure dial
on MCM is set to position
"3" for E-XP2.
P4BX
MCM
High Pressure B
System
pressurized before
allowing heat to
reach setpoint.
Pressure in the hose and
pumps will increase as the
system heats up. Turn on
heat and allow all zones
to reach the temperature
setpoint before turning on
the pumps.
Bad pressure
transducer.
Verify the ADM pressure
reading and the analog
guages at the manifold.
E-XP2 system
Alarm level is lower for E-30
configured as E-30. than for E-XP2. Ensure dial
on MCM is set to position
"3" for E-XP2.
22
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
P6AX
MCM
P6BX
P6FA
333024G
MCM
MCM
Type
Description
Cause
Solution
Pressure Sensor
Error A
Loose/bad
connection.
Check to ensure the
pressure transducer is
properly installed and
all wires are properly
connected.
Bad sensor.
Check if the error follows
the transducer. Disconnect
transducer cables from
the MCM (connectors 6
and 7). Reverse A and B
connections and check if
the errors follows. If the
error follows the transducer,
replace the pressure
transducer.
Loose/bad
connection.
Check to ensure the
pressure transducer is
properly installed and
all wires are properly
connected.
Bad sensor.
Check if the error follows
the transducer. Disconnect
transducer cables from
the MCM (connectors 6
and 7). Reverse A and B
connections and check if
the errors follows. If the
error follows the transducer,
replace the pressure
transducer.
Inlet sensors not
installed.
If inlet sensors are not
installed, inlet sensors
should be disabled on the
System Setup screen.
Loose/bad
connection.
Check to ensure inlet
sensor is properly installed
and all wires are properly
connected.
Bad sensor.
Check if the error follows
the inlet sensor. Disconnect
inlet sensor cables from
the MCM (connectors 8
and 9). Reverse A and B
connections and check if
the errors follows. If the
error follows the sensor,
replace the inlet sensor.
Pressure Sensor
Error B
Pressure Sensor
Error Inlet A
23
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
P6FB
MCM
P7AX
24
MCM
Type
Description
Cause
Solution
Pressure Sensor
Error Inlet B
Inlet sensors not
installed.
If inlet sensors are not
installed, inlet sensors
should be disabled on the
System Setup screen.
Loose/bad
connection.
Check to ensure inlet
sensor is properly installed
and all wires are properly
connected.
Bad sensor.
Check if the error follows
the inlet sensor. Disconnect
inlet sensor cables from
the MCM (connectors 8
and 9). Reverse A and B
connections and check if
the errors follows. If the
error follows the sensor,
replace the inlet sensor.
Pressure
difference between
A and B material
is greater than the
defined value.
Ensure material flow is
equally restricted on both
material lines.
Pressure
imbalance is
defined too low.
Ensure that the pressure
imbalance value, on the
System Setup screen, is at
an acceptable maximum
pressure to prevent
unnecessary alarms and
abort dispenses.
Out of material.
Fill tanks with material
Fluid leaking from
heater inlet rupture
disk.
Check if heater
and PRESSURE
RELIEF/SPRAY valve are
plugged. Clear. Replace
rupture disk. Do not replace
with a pipe plug.
Feed system
defective.
Check feed pump and
hoses for blockage. Check
that feed pumps have
correct air pressure.
Pressure Imbalance
A High
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
P7BX
MCM
T2DA
333024G
Heater A
Type
Description
Cause
Solution
Pressure Imbalance
B High
Pressure
difference between
A and B material
is greater than the
defined value.
Ensure material flow is
equally restricted on both
material lines.
Pressure
imbalance is
defined too low.
Ensure that the pressure
imbalance value, on the
System Setup screen, is at
an acceptable maximum
pressure to prevent
unnecessary alarms and
abort dispenses.
Out of material.
Fill tanks with material
Fluid leaking from
heater inlet rupture
disk.
Check if heater
and PRESSURE
RELIEF/SPRAY valve are
plugged. Clear. Replace
rupture disk. Do not replace
with a pipe plug.
Feed system
defective.
Check feed pump and
hoses for blockage. Check
that feed pumps have
correct air pressure.
Flow is too high at
current setpoint.
Use a smaller mix chamber
that is rated for the unit
in use. If recirculating,
decrease flow or decrease
temperature setpoint.
Bad RTD or bad
RTD placement
against heater.
Swap A and B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
Bad heater rod or
loose heater wire.
Confirm resistance of
heater. Heater resistance
should be 9-12 Ω for 10
kW systems and 6-8 Ω
for 15 kW systems. If out
of tolerance, check for
loose heater rod wire(s).
Reconnect wires or replace
heater rod if necessary.
Low Temperature A
25
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T2DB
Heater B
T2DH
T2FA
Hose
MCM
Type
Description
Cause
Solution
Low Temperature B
Flow is too high at
current setpoint.
Use a smaller mix chamber
that is rated for the unit
in use. If recirculating,
decrease flow or decrease
temperature setpoint.
Bad RTD or bad
RTD placement
against heater.
Swap A and B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
Bad heater rod or
loose heater wire.
Confirm resistance of
heater. Heater resistance
should be 9-12 Ω for 10
kW systems and 6-8 Ω
for 15 kW systems. If out
of tolerance, check for
loose heater rod wire(s).
Reconnect wires or replace
heater rod if necessary.
Flow is too high at
current setpoint.
Use a smaller mix chamber
that is rated for the unit
in use. If recirculating,
decrease flow or decrease
temperature setpoint.
Cold chemical in
unheated portion
of system passed
hose FTS at
startup.
Recirculate heated
chemical back to drum
in cold conditions before
startup.
Inlet fluid
temperature is
below the defined
level.
Recirculate fluid through
heaters until inlet fluid
temperature is above
defined error level.
Low Temperature
Hose
Low Temperature
Inlet A
Increase the low
temperature deviation
level on the System Setup
screen.
T2FB
MCM
Low Temperature
Inlet B
Inlet fluid
temperature is
below the defined
level.
Recirculate fluid through
heaters until inlet fluid
temperature is above
defined error level.
Increase the low
temperature deviation
level on the System Setup
screen.
26
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T3CH
Hose
T3CT
T3NM
T3CM
TCM
MCM
MCM
Type
Description
Cause
Solution
Hose Cutback
Hose current has
been reduced
because hose
has been drawing
current for an
extended period.
Hose setpoint higher than A
and B setpoints. Decrease
hose setpoint.
High ambient
temperature.
Ensure ambient
temperature is below
120°F(48°C) before using
the system.
Enclosure fan not
operating.
Ensure fan in electrical
enclosure is spinning. If it
is not, check fan wiring or
replace fan.
Module fan not
operating.
If a TCM fan error (WMI0)
has occurred, fan inside
the module is not working
properly. Check TCM fan
for debris and clear with
forced air if necessary.
Motor is operating
outside of the
pressure flow
curve.
The system is running at a
lower setpoint to preserve
motor life. Run the system
at a lower duty cycle or with
a smaller mix chamber.
High ambient
temperature
Ensure ambient
temperature is below
120° F (48° C) before using
the system.
Motor control
temperature is
too high.
Ensure ambient
temperature is below
120°F(48°C).
TCM Cutback
Motor Temperature
Cutback
MCM Temperature
Cutback
Hose FTS is in a colder
environment than the rest
of the hose. Expose FTS to
the same environment as
the rest of the hose.
Verify that all fans are
working.
T4CM
333024G
MCM
High Temperature
MCM
High ambient
temperature.
Ensure ambient
temperature is below
120°F(48°C) before using
the system.
Enclosure fan not
operating.
Ensure fan in electrical
enclosure is spinning. If it
is not, check fan wiring or
replace fan.
27
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T4CT
TCM
T4DA
Heater A
Type
Description
Cause
Solution
High Temperature
TCM
High ambient
temperature.
Ensure ambient
temperature is below
120°F(48°C) before using
the system.
Enclosure fan not
operating.
Ensure fan in electrical
enclosure is spinning. If it
is not, check fan wiring or
replace fan.
Module fan not
operating.
If a TCM fan error (WMI0)
has occurred, fan inside
the module is not working
properly. Check TCM fan
for debris and clear with
forced air if necessary.
Bad RTD or bad
RTD placement
against heater.
Swap A and B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
High Temperature A
Use a smaller mix chamber
Flow too high
that is rated for the unit in
for temperature
use.
setpoint, causing
temperature
overshoots when
gun is de-triggered.
T4DB
Heater B
High Temperature B
Bad RTD or bad
RTD placement
against heater.
Swap A and B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
Use a smaller mix chamber
Flow too high
that is rated for the unit in
for temperature
use.
setpoint, causing
temperature
overshoots when
gun is de-triggered.
28
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T4DH
Hose
Type
Description
Cause
Solution
High Temperature
Hose
Hose portion
exposed to an
excessive heat
source, like hot
sun or coiled
hose, can pass
fluid more than
27°F (15°C) over
hose temperature
setting to the FTS.
Shade exposed hose from
hot sun or expose FTS to
same environment when
at rest. Uncoil entire hose
before heating to avoid
self-heating.
Increase hose setpoint
Setting the A or
so it is closer to A and B
B setpoint much
setpoints.
higher than hose
setpoint can cause
fluid more than
27°F (15°C) over
hose temperature
setting to reach the
FTS.
T4EA
333024G
Heater A
High Temperature
Switch A
Overtemperature
switch sensed a
fluid temperature
above 230°F
(110°C).
Heater was delivered too
much power, causing the
overtemperature switch to
open. RTD is not reading
properly. After the heater
cools down, replace RTD.
Switch closes and the error
can be cleared when the
heater temperature falls
below 190°F (87°C).
Disconnected
or loose
overtemperature
switch
cable/connection.
If heater is not actually
over temperature, check
all wiring and connections
between the TCM and the
overtemperature switches.
Overtemperature
switch failed in the
open position.
Replace overtemperature
switch.
29
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T4EB
Heater B
T4NM
MCM
Type
Description
Cause
Solution
High Temperature
Switch B
Overtemperature
switch sensed a
fluid temperature
above 230°F
(110°C).
Heater was delivered too
much power, causing the
overtemperature switch to
open. RTD is not reading
properly. After the heater
cools down, replace RTD.
Switch closes and the error
can be cleared when the
heater temperature falls
below 190°F (87°C).
Disconnected
or loose
overtemperature
switch
cable/connection.
If heater is not actually
over temperature, check
all wiring and connections
between the TCM and the
overtemperature switches.
Overtemperature
switch failed in the
open position.
Replace overtemperature
switch.
Cooling fan is not
operating properly.
Check to see that the motor
fan is moving. Measure
voltage to fan. There should
be 24 VDC.
If no voltage is measured,
check fan wiring. If the
fan has voltage but is not
moving, replace fan.
If necessary use an air hose
to blow out around the fan
housings and remove any
built-up debris.
High ambient
temperature.
Ensure ambient
temperature is below
120°F(48°C) before using
the system.
High Temperature
Motor
Motor is operating Run the system at a lower
outside of the
duty cycle or with a smaller
pressure flow curve mix chamber.
Motor temperature
sensor wires are
shorted together
30
Measure resistance
between pins 2 and 4
on motor temperature cable
connector at MCM, port
2. A reading below 75
ohms indicates a wire short.
Replace motor.
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T6DA
Heater A
333024G
Type
Description
Cause
Solution
Sensor Error A
Disconnected or
loose RTD cable or
connection.
Check all wiring and
connection to RTD.
Bad RTD.
Switch the RTD with
another and see if the error
message follows the RTD.
Replace RTD if the error
follows the RTD.
31
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T6DB
Heater B
T6DH
Hose
Type
Description
Cause
Solution
Sensor Error B
Disconnected or
loose RTD cable or
connection.
Check all wiring and
connection to RTD.
Bad RTD.
Switch the RTD with
another and see if the error
message follows the RTD.
Replace RTD if the error
follows the RTD.
Sensor Error Hose
Disconnected or
Expose each hose RTD
shorted RTD cable connection to check and
in hose or bad FTS. retighten any loose connector. Measure hose RTD
cable and FTS continuity.
See Repair Heated Hose,
page 66. Order RTD Test
kit 24N365 for measurement.
Disconnect hose RTD and
use manual hose mode to
finish job until repair can be
completed.
T6DT
TCM
Sensor Error TCM
Shorted RTD cable Expose each hose RTD
connection to check for
in hose or FTS.
exposed and shorted RTD
wires. Measure hose RTD
cable and FTS continuity.
See Repair Heated Hose,
page 66. Order RTD Test
kit 24N365 for measurement.
Disconnect hose RTD and
use manual hose mode to
finish job until repair can be
completed.
Shorted A or B
Heater RTD
32
If the error still occurs with
the hose FTS unplugged,
one of the heater RTDs
is bad. Unplug the A or
B RTD from the TCM. If
unplugging an RTD fixes
the T6DT error, replace the
RTD.
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T6NM
MCM
333024G
Type
Description
Cause
Solution
Sensor Error Motor
Disconnected
or loose motor
temperature cable
connector
Verify proper cable
connection at MCM, port
2. Measure resistance
between pins 2 and 4 on
motor temperature cable
connector. A correct ohm
reading will vary greatly
with temperature. An open
circuit reading indicates a
wire break. Replace motor.
33
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
T8DA
Heater A
T8DB
Heater B
Type
Description
Cause
Solution
No Temperature
Rise A
Bad RTD or bad
RTD placement
against heater.
Swap A and B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
Bad heater rod or
loose heater wire.
Confirm resistance of
heater. Heater resistance
should be 9-12 Ω for 10
kW systems and 6-8 Ω
for 15 kW systems. If out
of tolerance, check for
loose heater rod wire(s).
Reconnect wires or replace
heater rod if necessary.
Started spraying
before heater
reached operating
temperature.
Wait until operating
temperature has been
reached before spraying or
recirculating.
Bad RTD or bad
RTD placement
against heater.
Swap A and B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
Bad heater rod or
loose heater wire.
Confirm resistance of
heater. Heater resistance
should be 9-12 Ω for 10
kW systems and 6-8 Ω
for 15 kW systems. If out
of tolerance, check for
loose heater rod wire(s).
Reconnect wires or replace
heater rod if necessary.
Started spraying
before heater
reached operating
temperature.
Wait until operating
temperature has been
reached before spraying or
recirculating.
No Temperature
Rise B
T8DH
Hose
No Temperature
Rise Hose
Started spraying
before heater
reached operating
temperature.
Wait until operating
temperature has been
reached before spraying or
recirculating.
V1CM
MCM
Low Voltage MCM
Loose/bad
connection or
tripped circuit
breaker.
Check wiring for loose
connection or tripped circuit
breaker.
Low incoming line
voltage.
Measure voltage at circuit
breaker and ensure voltage
is greater than 195 VAC.
34
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
V1IT
Description
Cause
TCM
Low Voltage CAN
Bad 24 VDC power Check voltage of power
supply.
supply. Voltage should
be 23-25 VDC. If out of
tolerance, replace power
supply.
V2IT
TCM
Low Voltage CAN
Bad 24 VDC power Check voltage of power
supply.
supply. Voltage should
be 23-25 VDC. If out of
tolerance, replace power
supply.
V2MA
TCM
Low Voltage A
Loose connection
or tripped circuit
breaker.
Check wiring for loose
connection or tripped circuit
breaker.
Low incoming line
voltage.
Measure voltage at circuit
breaker and ensure voltage
is greater than 195 VAC.
Loose connection
or tripped circuit
breaker.
Check wiring for loose
connection or tripped circuit
breaker.
Low incoming line
voltage.
Measure voltage at circuit
breaker and ensure voltage
is greater than 195 VAC.
Loose connection
or tripped circuit
breaker.
Check wiring for loose
connection or tripped circuit
breaker.
Low incoming line
voltage.
Measure voltage at circuit
breaker and ensure voltage
is greater than 195 VAC.
V2MB
V2MH
TCM
TCM
Type
Low Voltage B
Low Voltage Hose
Solution
V3IT
TCM
High Voltage CAN
Bad 24 VDC power Check voltage of power
supply.
supply. Voltage should
be 23-25 VDC. If out of
tolerance, replace power
supply.
V3MA
TCM
High Voltage A
Incoming line
voltage is too high.
333024G
Ensure incoming system
power is wired properly.
Verify voltage at each circuit
breaker is between 195 and
264 VAC.
35
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
V3MB
Description
Cause
Solution
TCM
High Voltage B
Incoming line
voltage is too high.
Ensure incoming system
power is wired properly.
Verify voltage at each circuit
breaker is between 195 and
264 VAC.
V3MH
TCM
High Voltage Hose
Incoming line
voltage is too high.
Ensure incoming system
power is wired properly.
Verify voltage at each circuit
breaker is between 195 and
264 VAC.
V4CM
MCM
High Voltage MCM
Incoming line
voltage is too high.
Ensure incoming system
power is wired properly.
Verify voltage at each circuit
breaker is between 195 and
264 VAC.
V4IT
TCM
High Voltage CAN
Bad 24 VDC power Check voltage of power
supply.
supply. Voltage should
be 23-25 VDC. If out of
tolerance, replace power
supply.
V4MA
TCM
High Voltage A
Incoming line
voltage is too high.
Ensure incoming system
power is wired properly.
Verify voltage at each circuit
breaker is between 195 and
264 VAC.
V4MB
TCM
High Voltage B
Incoming line
voltage is too high.
Ensure incoming system
power is wired properly.
Verify voltage at each circuit
breaker is between 195 and
264 VAC.
V4MH
TCM
High Voltage Hose
Incoming line
voltage is too high.
Ensure incoming system
power is wired properly.
Verify voltage at each circuit
breaker is between 195 and
264 VAC.
36
Type
333024G
Reactor 2 Electric - Troubleshooting - Error Codes
Troubleshooting
Error
Location
WBC0
MCM
Type
Description
Cause
Solution
Software Version
Error
Incorrect software
version.
Insert a system token into
the ADM module and cycle
the power. Wait until the
upload is complete before
removing the token.
MCM does not
have line voltage.
If V1CM also exists, see
troubleshooting for V1CM.
The software version
cannot be read if the MCM
does not have line voltage.
WMI0
TCM
TCM Fan Error
Fan inside TCM
is not operating
properly.
Check for debris in the TCM
fan and clear with forced air
if necessary.
WSUX
USB
Configuration Error
USB
A valid
configuration file
can't be found for
the USB.
Inset a system token into
the ADM and cycle power.
Wait until the lights on the
USB port stop flashing
before removing token.
WXUD
ADM
USB Download Error
Log download
failed.
Backup and reformat the
USB drive. Retry download.
WXUU
ADM
USB Upload Error
Custom language
Perform normal USB
file failed to upload. download and use the new
disptext.txt file to upload the
custom language.
333024G
37
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