Codes de défaut couverts
39-13, 39-53
Code 39-53 Fan Start Failure Lockout
When a demand startup begins a fan speed is commanded to VFD. After 25 seconds of FG (fan speed feedback signal) = 0, the PCM will reset the VFD and try to start fan again. After 3 VFD resets Code 39-13 will be set. PCM will continue to reset VFD a total of 6 times before declaring code 39-53 and locking out for 1 hour. A successful fan start will reset the fan start failed counter.
Inspect all wiring and connectors for damage and loose connections. Check for fan blade blockage and free spin. Check external fan fuse. If no physical blockage is present and fuse is not open, ohm the motor and replace if necessary.
Pages de dépannage ACHPVSR454-02SM.