i have a MILLER nordyne propane furnace in a mobile home. the model is CMF 65-PG-DI-N serial# CMF 9107-02423. When the thermostat kicks on the motor will start the pump that blows out the gas fumes- runs about 45 seconds, then you will hear a click , then about 15 more seconds it will ignite and go on through the cycle as it should. But every now and when it gets to the point that after the pump blows out the fumes there will not be the next click and the motor will just run until you go turn the thermostat back to turn it off and as soon as you turn the thermostat back up it will work. my question is there a sensor that makes that clicking sound to get the igniter to light? I have had the furnace people around here and they put a new motor on saying that would fix the problem and it did not. Please if you could give me some information i would greatly appreciate it thank you JANIE
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