Hey guys. I have A Miller cmf80 Natural Gas Furnace in my mobile home. The induction fan will kick on for about 45 seconds but will not fire. I tapped on the gas valve and it fired. I have now replaced the gas valve and igniter. Still having the same outcome. Will kick on for 45 seconds but will not fire. If I tap on the burner or the control it will fire intermittently. I’m not sure what to do next. I had a heating guy come in before I started changing parts and he told me parts were not available and he wanted to replace the furnace for $3000. That being said I took the job on myself. Any help would be greatly appreciated ...
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