Error
Location
Type
Description
Cause
Solution
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.
T4CT
TCM
High Temperature
TCM
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 Aand B heater output
cables and RTD cables and
see if issue follows. If so,
replace RTD.
T4DAHeater 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 Aand 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.
334946A
31