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Carrier 38QRF036 Air Pressure Switch
The main job of the pressure switch is to determine whether the main blower is blowing air. Various air pressure switches have a manual reset feature, from which the switch will have to be manually reset before the entire HVAC system will continue operating again. This is part of a small, but important collection of safety creations designed to keep everyone in the house safe.
Signals that the Switch is About to Fail
- The furnace or AC refuses to operate properly.
- Inaccurate volt running through the switch.
- The desired temperature is hardly ever fully attained.
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