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Nordyne MS3BA024KA Furnace Door Switch
A furnace door switch is a safety feature that stops the blower and burner being triggered to start so as to stop a potential explosion. Do not try to fix it, just have it switched out quickly if it is defective in some way or another.
Warnings your furnace door switch will eventually need to be replaced
- The furnace does not turn on even with the door closed
- The switch seems to be messed up
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