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Friedrich PH14B Thermistor
A thermistor is a special kind of new age resistor that has a fluctuating resistance that is solely dependent on temperature. The control board takes the temperature in certain areas to do its job correctly. They inform the HVAC system when a temperature reaches a certain point.
Important clues of a poorly performing all-important thermister
- Main blower could refuse in the attempt to ramp up
- The heating and cooling system may never start up due to a thermistor that is stuck open
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If you decide on picking up or purchasing any Friedrich PH14B replacement part do your best and double check the correct model as well as make a visual inspection in order to be sure the proper replacement thermistor is the one being purchased. If you are not sure about the correct way of installing the new thermistor by yourself then it is probably best to contact a professional to do the work for you.
Feel free to download your manual for help.
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