Lennox furnace error code E223

Lennox furnaces are always prone to errors, but an error code of E223 denotes a serious issue on the unit. This error code is caused by a fault of the burner or gas valve and should not be ignored.

A dirty, clogged filter can also cause an E223 error. If your furnace shows this error and you have had it serviced recently, you may want to consider cleaning your filter before calling for service.

A furnace with an E223 means something is wrong with the burner or gas valve, and the problem should not be ignored.

Lennox furnace error code E223 is an alert that reads, “The gas valve solenoid is stuck closed.” This means that the furnace is not receiving enough oxygen to operate because the gas valve has been closed.

If this happens, you will need a technician to check into it for you. If not, there could be a problem with the wiring or heating elements, so call Lennox customer service for help on this issue, and they will get someone out to your home as soon as possible.

Error code E223 is a gas valve failure code. It may indicate that the gas valve needs to be replaced.

While there are many possible causes of error code E223, the most common is related to the defective igniter, defective control board, or a broken wire within the circuit board.

An Error Code E223 error can typically be detected by holding the Reset button for approximately ten seconds and monitoring for an audible tone from the furnace and blower unit.