Code 38-13 VFD Compressor Fault – Start Fail Code 38-53 VFD Compressor Lockout – Start Fail

Code 38-13 originates in VFD after additional compressor starting failures. While this code is active the unit opens PEV (if present) in an attempt to equalize pressure across compressor and continue start retries. After 3 consecutive code 38-13, malfunction 38-53 will be set with a 2 hour lockout.

Check compressor wiring for secure connections, wire damage, and wire

order. This code indicates that the VFD is not able to rotate the compressor rotor enough to complete starting process, indicating compressor damage or high pressure differential. If malfunctions continue to be generated and technician confirms pressure differential across compressor is <40psi, replace compressor.

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Pages de dépannage ACHPVSR454-02SM.