Troubleshooting
Troubleshooting
Troubleshooting
Installing and servicing this equipment requires
access to parts which may cause an electric shock
or other serious injury if the work is not performed
properly. Do not install or repair this equipment
unless you are trained and qualified.
Follow the
Fluid Voltage Discharge and Grounding
, before checking or servicing
the system and whenever you are instructed to
discharge the voltage.
To reduce the risk of an injury, follow the
Pressure Relief Procedure, page 26
, whenever
you are instructed to relieve the pressure.
LED
LED
LED Diagnostic
Diagnostic
Diagnostic Information
Information
Information
The following LED signals, diagnoses, and solutions apply to the Control Interface
LED
LED
LED Status
Status
Status Signal
Signal
Signal
Diagnosis
Diagnosis
Diagnosis
Solution
Solution
Solution
Green on
The system is powered up.
—
Yellow
Internal communication is in
progress.
—
Red solid
Hardware failure.
Replace module.
Red flashing fast
Software is uploading.
—
Red flashing slow
Token error
Remove token and upload the
software token again.
Red flashes three times, pauses,
and then repeats
Invalid rotary switch position (FCM
and CGM only)
Change the rotary switch position
on the control module (inside
the air or speed controller) to a
valid position, and then restart the
system.
Troubleshooting
Troubleshooting
Troubleshooting the
the
the Control
Control
Control Interface
Interface
Interface
Problem
Problem
Problem
Cause
Cause
Cause
Solution
Solution
Solution
Power is not on.
Turn power supply on.
The control interface is not on.
Loose or disconnected CAN cable.
Tighten or connect CAN cable.
The control interface has power
but does not function.
Hardware failure.
Replace.
Red module status LED stays on
constantly even after power cycle.
Hardware failure.
Replace.
3A7370B
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