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Friedrich VHA24K Thermistor
A thermistor is a special kind of new age resistor whose rated resistance changes as it depends on actual temperature is perceives. They notify the HVAC system when a certain temperature in increasing or decreasing. The control board must know the temp in order to make sure everything is running smoothly.
How can I tell if my all-important thermister really needs to be replaced?
- The main fan could refuse in its attempt to ramp up the airflow
- The heating and cooling system could never start up because of the thermistor that is the problematic one
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If you are going to be buying or purchasing any Friedrich VHA24K part, do your due diligence and double check the model number as well as make a visual inspection in order to be sure the correct thermistor is the one being purchased. Replacing the thermistor is a piece of cake assuming you have the time and have the tools to do it right.
Feel free to download your manual for help.
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