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Frigidaire FRP90PTT3R0 Flame Sensor
A flame sensor is a device that will dependably sense the proper flame during the initial ignition of the furnace. As with any other safety sensor, if the flame sensor senses a problem the gas valve is shut off and the system halts for as long as it takes to remedy the problem.
Key signs of a weak primary flame sensor
- Any type of gas that has entered the furnace will not properly ignite and the control shows an error
- The whole system operates on certain occasions when it wants to
- The furnace will not start operating whatsoever
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