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Carrier 25HNA636A0030020 Furnace Door Switch
This switch blocks initial fan and ignition sequence from switching on so as to stop a potential explosion. It is extremely important that the device is switched out promptly especially if you think it is defective.
Elements of a weakening safety door switch
- The HVAC system will not fire up even when you close the door
- The switch has been bent badly
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If you are going to be buying or ordering any Carrier 25HNA636A0030020 part, do your due diligence and cross-check the correct model and also make a visual inspection so that you are positive that the correct replacement furnace door switch is being ordered. You do not need to install it yourself. Search for a pro in your community to pay to install it for you.
Feel free to download your manual for help.
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