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Carrier 38TZA048 Air Pressure Switch
The reason for the existence of the switch is to figure out if the primary blower is blowing air. An air pressure switch is one of many other device to keep you from harm. A lot of switches can have a manual reset, which forces the system to be reset physically or the entire system will not run.
Symptoms that your Switch will Fail Soon
- HVAC system does not actually get to the right temperature as set by the thermostat.
- The furnace won't ignite.
- Incorrect volt range reading.
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If you are going to be buying or purchasing any Carrier 38TZA048 replacement part do your best and double check the correct model and also make a visual inspection in order to be sure the right air pressure switch is the one being purchased. Installation of a new air pressure switch can be quite easy provided you know what you are doing and have the tools to do it right.
Feel free to download your manual for help.
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