Graco Reactor 2 H-30 Repair Manual page 30

Troubleshooting
Error Location
Error Error Location Location
T4CT TCM
T4DA Heater A
T4DB Heater B
30
Type Description
Type Type Description Description
High Temperature
TCM
High Temperature A
High Temperature B
Cause Solution
Cause Cause Solution Solution
High ambient Ensure ambient
temperature. temperature is below
120°F(48°C) before using
the system.
Enclosure fan not Ensure fan in electrical
operating. enclosure is spinning. If it
is not, check fan wiring or
replace fan.
Module fan not If a TCM fan error (WMI0)
operating. 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 Swap A and B heater output
RTD placement
cables and RTD cables and
against heater. see if issue follows. If so,
replace RTD.
Flow too high Use a smaller mix chamber
for temperature that is rated for the unit in
setpoint, causing use.
temperature
overshoots when
gun is de-triggered.
Bad RTD or bad Swap A and B heater output
RTD placement cables and RTD cables and
against heater. see if issue follows. If so,
replace RTD.
Flow too high Use a smaller mix chamber
for temperature that is rated for the unit in
setpoint, causing use.
temperature
overshoots when
gun is de-triggered.
334946C