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SPT TN-09E Furnace Door Switch
The furnace door switch prevents the blower and burner from starting so as to stop a potential explosion. You should really have it substituted for a new part as soon as possible especially if you suspect it is not working properly.
Major warnings of a faulty safety door switch
- The furnace door switch seems to be bent badly
- The HVAC system will not run whether the door is off or on
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If you are going to be buying or purchasing any SPT TN-09E part, do your due diligence and make sure of the model number and also make a visual inspection so that you are positive that the proper replacement furnace door switch is the one being purchased. HVAC professionals can be expensive so you could call around to acquire the best rate if you want to pay bottom dollar.
Feel free to download your manual for help.
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