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International Comfort Products GPFM30K060F Air Pressure Switch
The reason for the existence of the switch is to sense if the blower is blowing air. This pressure switch is one of many other facets of the HVAC safety checks that are dedicated to keep you from harm. Some pressure switches can have a manual reset, which, of course, means that it would have to be reset by hand in order for the HVAC system to continue running.
What Signs are Present when the Switch has Failed
- The desired temp is rarely fully attained.
- Furnace won't operate at all.
- Inaccurate voltage range running through the pressure switch.
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