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Heat Controller VMH18SC-1 Furnace Door Switch
The furnace door switch is a safety switch which blocks the fan and ignition sequence from turning on in order to prevent injury and fire. You should have the switch be exchanged for a new one quickly especially if you think it is defective.
Major clues the switch on your furnace door will soon need to be replaced
- The system will not begin even when you close the door
- The door switch looks like it is worn down
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Before buying or ordering any Heat Controller VMH18SC-1 replacement part do your best and cross-check the model number and also make a visual comparison in order to be sure the correct replacement furnace door switch is being ordered. Once you have the part to install the part by yourself. Locate a pro in your area to replace the part.
Feel free to download your manual for help.
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