What It Means
- OD Compressor Top Cap Switch Open
Lennox Equipment not specified
Lennox Equipment not specified Error Code 422
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 422
Priority condition: Service Soon Compressor top cap switch exceeding thermal limit. • Check condenser fan motor, TXV and indoor unit blower motor. • Check for stuck reversing valve or clogged refrigerant filter. • XC/XP25: Check to ensure that one of the wires from the top cap switch has not been disconnected from one of the TP terminals on the outdoor control. Reconnect wire if disconnected. • Check superheat and sub-cooling.
Applicable models & manual sources
- iComfort S30
OD Compressor Top Cap Switch Open
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
