Error Code PE/PF
Summary:
High-pressure switch protection for system A/B
Possible Cause:
- E-Stop Open
- High Temperature and load
- Poor heat exchange on the condenser coil
- EEV/filter blocked
Troubleshooting:
- Verify wired device to E-Stop has closed contacts
- Is the ambient temperature above 125°F - the main board is protecting the unit
- If the high-pressure failed - replace the switch
- If the unit is overcharged - adjust the refrigerant charge
- If there is a poor heat exchange or blockage on the condenser coil - correct it
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.