Alarm code
5C
Abnormal fan controller sensor.
* Activation conditions:
This alarm is indicated when the following conditions occur.
• After starting the fan motor operation, the fan controller current does not increase over 1.5 A.
• Before starting the fan motor operation, the fan controller peak current does not increase over 4 A.
Check the fan motor.
Restart operation.
Abnormal
Faulty fan controller
and replace
f
an controll
er. *1)
Faulty fan controller
and replace
f
an controll
er. *1)
Fan motor stops
immedi
ately
.
Fan motor is not operated.
How is fan motor
operation when
restar
ted?
Is the fan motor coil
nor
mal?
Nor
mall
*1): Carry out the electrical discharge when fan controller is checked or replaced, refer to: Checking procedures
for other
main parts, see on page 267.
8 Troubleshooting
231
SMGB0065 rev. 1 - 12/2010
8
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