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Lennox G40DF Air Pressure Switch
The main function of the air pressure switch is to sense whether the blower fan is circulating the air as it should. An air pressure switch is one of the most crucial aspects of the whole safety system that is intended to keep you safe. Most air pressure switches have a manual reset feature, by which you must manually reset it before the entire HVAC system will continue operating again.
How is it Known when the Switch is Beginning to Go Bad
- HVAC system does not get to the correct temp.
- Wrong volt range being read.
- The furnace or AC is unable to function.
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If you decide on picking up or ordering a new Lennox G40DF replacement part, do your due diligence and make sure of the model number as well as make a visual comparison in order to be sure the correct replacement air pressure switch is being ordered. HVAC pros may charge higher prices than others so you may want to keep a lookout locally to find a good deal if you do not want to pay too much.
Feel free to download your manual for help.
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