Troubleshooting
Error Location Type Description
Cause Solution
High ambient
temperature.
Ensure ambient
tempera ture is below
120°F(48°C) b efore us in g
the system.
Enclosure fan not
operating.
Ensurefaninelectrical
enclosure is spinning. If it
is not, check fan wiring or
replace fan.
T4CT TCM
High Temperature
TCM
Module fan not
operating.
If a TCM fan error (WMI0)
has occurred, fan inside
themoduleisnotworking
properly. Check TCM fan
for debris and cl ea r 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.
T4DA Heater A High Temperature A
Flow too high
for temperature
setpoint, causing
temperature
overshoots when
gun is de-triggered.
Use a smaller mix chamber
that is rated for the unit in
use.
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.
T4DB Heater B High Temperature B
Flow too high
for temperature
setpoint, causing
temperature
overshoots when
gun is de-triggered.
Use a smaller mix chamber
that is rated for the unit in
use.
333024F
27
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