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Lennox HPXB15-048 Air Pressure Switch
The main job of this type of switch is to sense whether the primary blower is actually running. This switch is part of all the safety features in today's HVAC systems that is in place to keep you safe from harm. Some particular air pressure switches are issued with a manual reset feature, which makes you reset it by hand or the entire system will not run.
What Signs are Present when your Pressure Switch is Beginning to Go Bad
- Incorrect voltage reading from the switch.
- System does not get to the correct temperature as set by the thermostat.
- Furnace won't run.
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