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Carrier 38AE Furnace Door Switch
A furnace door switch is a switch that prevents the draft inducer and burner being triggered to start so as to avoid injuries. It is vital that this part be switched out immediately if you can, if it is damaged so as to prevent something bad happening.
Some warnings of an unhealthy furnace door switch
- The furnace does not fire up whether the door is off or on
- The switch looks like it is eroded
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