Lennox furnace cml193uh error codes

Lennox furnace error codes can be found on a white sticker on the back or inside your furnace. There are about five different symbols, and knowing what each means is important.

This is why it is important to know how to read these error codes and fix the issue that caused them.

– If you have power but still have an error code on your display or in logs, disconnect all power to the unit for 30 seconds before reconnecting.

Lennox has a proprietary error code used to diagnose and troubleshoot the furnace. If you are experiencing a Low Limit Error Code, it typically means that the low limit thermostat is stuck on.

If you ever notice a Lennox brand error code, you may need to reset the low-limit thermostat. You can check whether the furnace needs a reset by looking for an open circuit on your furnace check wire or checking connected equipment in your home electrical panel.

The lennox ml193uh error code signifies an overheat or low heat condition caused by defective parts or wiring, insufficient air flow, or plugged blower wheel.

The following is the lennox furnace ml193uh error code: “ML-193UH: Open or short circuit detected on control board.”

Many people try to troubleshoot their lennox furnace by resetting their thermostat, which may or may not solve the problem for individual users. However, resetting the thermostat does not fix every case of this error code.

“Inspections, Installations, Repairs & Maintenance”