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Carrier 58DH Thermistor
A very basic thermistor is a type of resistor whose rated resistance will fluctuate depending on the current temperature. They convey to the main board when the temperature has been reached. The main control board reads the temperature in a few critical areas to make a decision on what needs to be done.
Clues your all-important thermister will die soon
- The initial sequence may not even start because of any thermistor that is stuck open
- The blower could fail in its attempt to ramp up
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If you are going to be buying or purchasing any Carrier 58DH part, do your due diligence and cross-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. Replacing a new thermistor can be quite easy assuming you energy and have the proper tools to do it right.
Feel free to download your manual for help.
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