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International Comfort Products N9MP2125J20A1 Furnace Door Switch
A furnace door switch is a safety feature that blocks the blower and ignition sequence from activating so as to stop a potential explosion. Do not waste time and have it switched out as soon as possible if you suspect that it is not working.
Key symptoms poorly running safety door switch
- The HVAC system does not function whether the door is open or closed
- The safety door switch appears to be wrong
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