T959_O: Compressor Locked Rotor - Lockout

EcoNet - T959_O ยป

Status

Equipment will go into permanent lockout after 3 attempts.

Description

Compressor is pulling locked rotor amperage and has locked out as a result.

Expected Operation

System will not operate.

Cause

The most common causes:

1. The most common cause for this failure is a mis-wiring, disconnected wires or broken wires or connectors.

2. Failed compressor - such as a seized bearings or winding resistance out of tolerance. 

3. Failed compressor drive.

Solution

1. Check compressor winding resistance relative to ground to see if compressor windings are shorted. If so, replace compressor.
2. If compressor windings are OK, replace compressor drive controller. 
3. Compressor may be mechanically seized if windings are correct and drive does not resolve issue. - Replace Compressor.