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Lennox CB30U-31 Furnace Door Switch
A furnace door switch is a safety feature that blocks the draft inducer and gas ignition from turning on in order to prevent injury and fire. You should really have it replaced immediately if you can, if it is defective in some way or another.
Major indications of an unhealthy switch on the furnace door
- The door mechanism looks like it is bent
- The system does not fire up whether the door is off or on
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Before you decide on buying or purchasing a new Lennox CB30U-31 replacement part do your best and double check the model number and also make a visual comparison in order to be sure the correct furnace door switch is the one being purchased. HVAC professionals may charge higher prices than others so it may be beneficial to look around your area to acquire the best rate if you want to pay bottom dollar.
Feel free to download your manual for help.
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