CGWD, CGWE, CGAD, CGAE, CCAD, CCAE:
- High Motor / Refrigerant Temperature - Compressor A B, C, or DC1, C2, C3, or C4
- This diagnostic is displayed when the High Motor/High Refrigerant Temperature input for the compressor is open.
- Normally, this occurs when either the motor winding thermostat or the refrigerant discharge thermostat for the respective compressor has tripped.
- This is a CMR diagnostic.
- This could mean a faulty t-stat, a bad motor, or both.
- Before condemning the compressor, ensure there is no wiring problem.
Typically you will need to replace the compressor.
High Motor Temperature, Compressor A C1 CMR k Motor temperature exceeded "must trip" value High Motor Temperature, Compressor B C2 CMR A. Motor temperature exceeded "must trip" value High Motor Temperature, Compressor C C3 CMR A. Motor temperature exceeded "must trip" value High Motor Temperature, Compressor D C4 CMR A. Motor temperature exceeded "must trip" value
Additional details
Facts
- Air-Cooled Chiller (PBL) (CGAD, CGAE)
- Compressor Chiller (PBL) (CCAD, CCAE)
- Water-Cooled Chiller (PBL) (CGWD, CGWE)
- Compressor Chiller (PBL) (CCAA, CCAB, CCAC)
- Water-Cooled Chiller (PBL) (CGWA, CGWB, CGWC)
WARNING:
Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.