Question about Heating & Cooling
The pilot light works just fine and the furnace starts up but then shuts off immediately. It keeps trying to start but the same thing keeps happening. Then out of the blue the furnace will work just fine!?!?!
If you have a hot surface igniter (glow coil) it has a secondary purpose after ignition and that is to sense that there is actually flame present. If the HSI is located on one end of the burners look to the other and see if there is a small rod that protrudes in to the flame as well. If so it is part of this flame proving cycle. Take some sand cloth and clean it. This may buy some time but the rod should soon bee replaced.
Posted on Jan 17, 2009
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Posted on Jan 02, 2017
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