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Carrier FC4B Flame Sensor
A flame sensor is a very important part of the safety feature set that can reliably detect the precise flame during the initial ignition of the furnace. As with other safety devices, if the sensor get triggered the system will halt until that particular problem is fixed.
Major signs your flame sensor has little life left
- The heat system will not even begin to start when you have it set to
- The main type of gas finds it impossible to ignite and the whole system shuts down
- The unit operates infrequently at the stroke of midnight after the second full moon following the second Sunday of the month
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If you are going to be buying or purchasing a replacement flame sensor for your Carrier FC4B, do your due diligence and cross-check the model number and also make a visual comparison so that you are positive that the correct replacement flame sensor is the one being purchased. It can be quite simple to replace a flame sensor on your Carrier FC4B as long as you know how to and have the proper tools to do the job right.
Feel free to download your manual for help.
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