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International Comfort Products PAPA42GA1 Air Pressure Switch
The actual job of the switch is to sense if the primary blower is blowing air. This switch is a vital device of all the safety features in today's HVAC systems that is in place to keep you safe from harm. A good number of pressure switches today are equipped with a manual reset feature, which means it would need to be reset before the HVAC system will continue.
Warning Signs that the Switch is Beginning to Fail
- Your furnace can't run.
- Wrong voltage reading from the switch.
- The correct temperature indoors seldom reached.
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