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Sanyo XS1271 Air Pressure Switch
The function of the pressure switch is to determine whether or not the blower is running properly. This is one of the key safety creations designed to stop injuries or explosions. The vast majority of pressure switches made today are programmed with a manual reset, which forces the system to be reset physically before the entire HVAC system will continue operating again.
Signs to Look for when the HVAC Air Pressure Switch has Failed
- The furnace or AC can not function properly.
- Wrong volt range reading from the switch.
- HVAC system does not get to the correct indoor temp.
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