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Haier HC18D2VAR Air Pressure Switch
The actual job of the switch is to sense if the blower fan is doing what it is supposed to do. This pressure switch is a vital device of the safety system in place to keep you safe and keep your family safe. The vast majority of pressure switches made today are designed with a reset that is manual instead of automatic, which means you have to physically reset it in order for the HVAC system to continue running.
Common Symptoms of a Nearly Failed Air Pressure Switch
- The right temperature is never achieved.
- Wrong voltage running through the switch.
- The furnace or AC will not function properly.
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