Troubleshootin
g
Error Location Type Description
Cause Solution
Cooling fan on
back of motor
not operating
properly.
• Ensure fan is a
lways running when
machine is pow
ered on.
• Ensure fan is b
lowing air toward
the motor (in
ward).
• Ensure fan is
clean and moves
freely. Remo
ve any obstructions
infrontoffa
n grill.
• Ensure no ho
t air (from other heat
sources) is
being directed toward
the fan.
Ambient
temperature is
too high.
Ensure system ambient temperature
is below 120° F (48° C).
T3NM
MCM
Motor
Temperature
Cutback
Machine is
operating above
pressure/flow
rating.
Mix chamb
er is too large for set
pressure
.
Set pressure is too high for given
mix chamber.
NOTE: This cutback occurs to
preserve motor life. If the motor gets
too hot this advisory automatically
reduces the pressure setpoint to
allow the motor to cool. To avoid
this advisory, run the system at a
lower duty cycle or with a smaller mix
chamber.
High a
mbient
tempe
rature.
Ensur
e ambient temperature is below
120° F
(48° C) before using the
syste
m.
T4CM MCM
High
Tempe
rature
MCM
Enclosure fan not
operating.
Ensure fan in electrical enclosure is
spinning. If it is not, check fan wiring
or replace fan.
High
ambient
tem
perature.
Ensu
re ambient temperature is below
120
° F (48° C) before using the
sys
tem.
Enclosure fan not
operating.
Ensure fan in electrical enclosure is
spinning. If it is not, check fan wiring
or replace fan.
T4CT TCM
High
Tem
perature
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.
333024N 31
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