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Payne PH3ZNA048000AA Air Pressure Switch
The reason for the existence of the switch is to determine whether the primary air circulator is on and running. Some pressure switches have a manual reset feature, which means you have to physically reset it or the whole HVAC system will not continue operation. This is one of the vitally important safety mechanisms designed to keep you from harm.
Signs to Look Out for when the HVAC Air Pressure Switch is Failing
- The correct temperature in the house is hardly ever attained.
- Your furnace refuses ignite.
- Inaccurate voltage range being read.
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