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DeLonghi PACT100P Air Pressure Switch
The reason for the existence of the pressure switch is to see if the blower fan is running properly. Various air pressure switches can have a manual reset, which makes you reset it by hand before the entire HVAC system will continue operating again. The air pressure switch is part of the safety system that is in place to keep you safe and keep your family safe.
How is it Known when the System Pressure Switch has Failed
- The correct temp is never attained.
- Bad voltage range reading.
- The furnace refuses run.
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