Error Code PH
Summary:
Low discharge superheat protection
Possible Cause:
- EEV failed
- Poor heat exchange on the evaporating side
- Refrigerant overcharged
Troubleshooting:
- If the T3/T5 sensor fails - Replace the sensor (chart below)
- Poor heat exchange on the evaporator coil - correct it
- If the EEV fails - replace it
- Verify if refrigerant charge (overcharge) - adjust charge
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.