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Carrier FV4CNF003 Flame Sensor
The flame sensor is one of the safety features that senses the proper flame upon ignition. As expected, if the flame sensor is triggered the furnace cannot start again until the problem is remedied and the system is reset.
Main clues the primary flame sensor should need replacing
- The gas supplying the furnace will not even try to begin an ignition sequence no matter what
- The furnace kicks in infrequently when the time is right
- Your heating system will not work when the thermostat kicks in
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Before you decide on buying or ordering a new Carrier FV4CNF003 replacement part do your best and double check the model number and also make a visual comparison in order to be sure the correct replacement flame sensor is being ordered. Some pros may charge higher prices than others so you may want to ask around to acquire the best rate if money is of great importance to you.
Feel free to download your manual for help.
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