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International Comfort Products GPFM48S120F Air Pressure Switch
The main job of this type of switch is to sense if the primary air circulator is actually running. Some pressure switches may have a manual reset, from which it would have to be reset manually before you can continue using the system. This switch is an important part of all the safety features in today's HVAC systems in place to keep you safe from harm.
Precursors that the Air Pressure Switch is Already Failing
- The correct indoor temperature is never reached.
- Your furnace refuses ignite.
- Wrong electrical voltage being read from the pressure switch.
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