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Friedrich MW30C3F Furnace Door Switch
A furnace door switch is a switch that stops the vent fan and burner from switching on so as to stop a potential explosion. It is important to get the part exchanged for a new one as soon as you can especially if you think it is defective.
Hints of a laboring switch on the furnace door
- The switch has been damaged
- The HVAC system does not function whether the door is off or on
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