Lennox furnace error code 436

Lennox is a manufacturer of appliances that includes furnaces. It is very important to know the error codes and be able to troubleshoot them when they occur.

Lennox furnace error code 436 is the first indication that something may be wrong with the sensor related to the flame-sensing module. In this case, there may not be enough oxygen in the gas line for it to pass through. The air filter should be checked for clogging and then unclogged if needed. If there is still an issue after this, call a technician as it could mean that there are other problems with the furnace that need more in-depth troubleshooting.

Lennox’s furnaces have a number of sensors to prevent malfunctions and determine the right way to act. The error code 436 means that status has been lost and the furnace will shut down.

The error code 436 usually means that there is an issue with the heat exchanger.

This error code is usually triggered by a problem with the heat exchanger, which can be caused by a blocked air filter, low water level, or a clogged air filter. Whatever the cause may be, you should contact Lennox and let them know about your issue.

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