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Lennox XP19-048 Air Pressure Switch
The main job of an air pressure type switch is to sense whether the primary blower is running. Some different switches are programmed with a manual reset, which means it will have to be manually reset before the HVAC system will continue. An air pressure switch is one of the key devices that are created to keep everyone in the house safe.
Signals that the Air Pressure Switch will Fail Soon
- Furnace is unable to ignite the gas.
- Inaccurate voltage being used by the switch.
- HVAC system does not actually get to the right temperature when set by the thermostat.
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