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Lennox OF24-140 Air Pressure Switch
The main function of the air pressure switch is to sense whether the primary air circulator is circulating the air as it should. The vast majority of pressure switches made today are constructed with a manual reset, which means it will have to be manually reset before the HVAC system will continue. This is just one of the many indispensable safety creations designed to stop injuries or explosions.
Symptoms that your Pressure Switch has Gone Bad
- Furnace can not operate.
- Inaccurate voltage running through the switch.
- Your system doesn't actually get to the right temperature as set by the thermostat.
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Before you decide on buying or ordering do your best and double check the model number and also make a visual comparison so that you are positive that the correct air pressure switch is the one being purchased. Safety is always important when you install any HVAC part. When in doubt call a pro. Stay safe.
Feel free to download your manual for help.
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