Trane TVR Pro CO Series Service Manual page 103

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The fan motor is blocked or has failed
The power supply is abnormal
Voltage between P and N on fan module
Replacing the fan module resolves the
Replace outdoor main PCB
Notes:
1. The normal voltage between P and N on the fan module is 540V DC.
No
No
is abnormal
1
No
error
No
Figure: Fan module P N terminals
Remove obstruction or replace the fan
Yes
Yes
Check the power supply equipment
Yes
Replace AC filter board
102
motor