What It Means
- HIGH TEMPERATURE (S7) STRIKE 3 COMPRESSOR 1
Lennox Unit controller
Lennox Error Code 193
Unit controller
Causes & actions from Lennox
How it shows
- M4 alarm code: 193
The unit controller will disable compressor operation (lockout). Check switch, charge, fans and coil. Default is three occurrences. Alarm will be automatically cleared after removal of cooling demand.
Applicable models & manual sources
- MODEL L - M4 UNIT CONTROLLER
HIGH TEMPERATURE (S7) STRIKE 3 COMPRESSOR 1
MODEL L - M4 UNIT CONTROLLER, M4 Unit Controller
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
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