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Need help with my furnace Mar 10th 2022, 16:59 2 3,737 on 11/3/22

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Need help with my furnace k8fff on 10/3/22
No, I don't mean my house is cold. My furnace makes horrible RFI when it runs. It's mostly on 20 meters, but it's also on 40 and 80 and 10. I just moved into the house and I really don't know much about the HVAC equipment here. It's an American Standard condensing gas furnace - the kind with two PVC pipes to the outside for combustion air intake and exhaust. The noise starts as soon as the thermostat calls for heat and the burner kicks on; it doesn't wait for the furnace to get warm enough that the blower runs. The noise is there as long as the burner is running, and quits when the burner shuts off, even though the blower is still running.

The Google tells me that the igniter is a hot element. I don't know if the igniter shuts off once the burner is lit, or if it stays on all the while. The Google also shows that there'a a circuit board in there somewhere, but I haven't found it yet, nor can I find any information about its function or operation. I also think there's a fan for combustion air, but I'm not sure about that either. I am hesitant to start taking my furnace the Michigan.

So, anybody have any ideas where I should start looking for an RFI source?

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