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Lennox CB28UH-048 Air Pressure Switch
The actual job of this type of switch is to sense if the main blower is doing what it is supposed to do. This switch is part of a small, but important collection of device to stop injuries or explosions. Most air pressure switches are constructed with a manual reset, from which it would have to be reset manually in order for the system to begin normal operations again.
How is it Known when the Switch is About to Fail
- HVAC system can not operate properly.
- Bad voltage running through the pressure switch.
- The proper temperature seldom fully achieved.
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If you are going to be buying or ordering do your best and cross-check the model number as well as make a visual inspection in order to be sure the correct replacement air pressure switch is being ordered. There is no rule that says you have to install the replacement part alone. Hire someone with experience in your town or city to do it for you.
Feel free to download your manual for help.
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