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Lennox XP19-042 Air Pressure Switch
The function of an air pressure type switch is to determine whether or not the air blower is blowing air. An air pressure switch is one of the key devices designed to keep you safe. Most air pressure switches are constructed with a manual reset, from which the switch will have to be manually reset or the whole HVAC system will not continue operation.
Signs that your Switch will Fail Soon
- Your furnace can not run.
- The expected indoor temperature is never fully achieved.
- Inaccurate electrical voltage reading from the switch.
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If you are going to be buying or purchasing any Lennox XP19-042 replacement part, do your due diligence and cross-check the model number as well as make a visual inspection so that you are positive that the right air pressure switch is being ordered. It can be quite simple to replace a air pressure switch on your Lennox XP19-042 as long as you are handy and have all the necessary tools to replace it.
Feel free to download your manual for help.
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