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International Comfort Products PGMD36G1156 Air Pressure Switch
The reason for the existence of the switch is to sense if the primary blower is blowing air. An air pressure switch is just one of many device to stop injuries or explosions. Some particular air pressure switches may 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.
Signs that the Pressure Switch will Fail Soon
- Inaccurate volt range being read.
- The right temperature indoors is never fully attained.
- The furnace will not ignite.
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