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Lennox XC21 Air Pressure Switch
The function of this type of switch is to determine whether the main blower is actually running. This switch is one of the most crucial devices designed to stop injuries or explosions. The majority of pressure switches may have a manual reset, which means it would need to be reset or the entire system will not run.
Signs of a Broken Pressure Switch
- Inaccurate voltage running through the switch.
- Furnace won't ignite the gas.
- Your system doesn't achieve the desired temperature when set by the thermostat.
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Before buying or purchasing do your best and make sure of the model number as well as make a visual comparison so that you are positive that the correct replacement air pressure switch is being ordered. The installing of the air pressure switch is a breeze assuming you know what you are doing and have the tools to get it done.
Feel free to download your manual for help.
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