Lennox furnace error code 124
An error code 124 means that the electronic control board (ECB) is faulty or has failed. An overload can cause this on the circuit, which may have tripped a breaker, an electrical problem such as a loose wire somewhere in your home’s circuit or wiring system or even moisture beneath your furnace, which has caused corrosion to develop.
Some Lennox furnaces have error code 124. This occurs when the temperature sensor is not reading heat properly and is no longer usable.
The Lennox furnace error code 124 occurs when the temperature sensor is not reading heat properly and has been disabled. If the sensor fails, it will be disabled and display an error code 124. The only way to fix this is to replace or unplug the sensor and install a new one in its place.
This error needs to be addressed as soon as possible because it can lead to other problems like:
– a heat exchanger and firebox corrosion
– increased gas consumption, higher operating costs and energy bills
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