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Carrier 48GS030040300 Air Pressure Switch
The job of the pressure switch is to determine whether or not the main blower is blowing air. This switch is one of the critical devices designed to keep everyone in the house safe. Some pressure switches are programmed with a manual reset, by which you must manually reset it in order for the HVAC system to continue running.
Symptoms that your Air Pressure Switch will go Bad
- Furnace refuses ignite.
- Your system doesn't get to the correct indoor temp.
- Wrong volt range running through the switch.
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