Your Lennox heat pump model SL22KLV is displaying error code 129, indicating a refrigerant flow issue and a communication error between the thermostat and outdoor unit. You'll need to inspect the … [Read more...]
Lennox XP25 Heat Pump Error Code 105: Communication Loss with Indoor Unit/Thermostat
You're experiencing a communication loss with your indoor unit or thermostat on your Lennox Heat Pump Model XP25, indicated by error code 105. This typically occurs due to Wi-Fi or internet issues, or … [Read more...]
