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Whirlpool ATR0942RPP0 Air Pressure Switch
The function of an air pressure type switch is to sense if the blower is running. An air pressure switch is part of a small, but important collection of aspects of the whole safety system that is intended to keep you safe. Some pressure switches are issued with a manual reset feature, which means you have to physically reset it before the entire HVAC system will continue operating again.
Signals that the Air Pressure Switch is Already Going Bad
- Inaccurate voltage reading from the switch.
- HVAC system does not get to the correct indoor temp.
- The furnace or AC refuses to operate.
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