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Old 01-18-2021, 05:49 PM   #1
Silverdillo
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Dometic furnace soot

I've got a 2020 Alpine with the Dometic gas furnace. This is my first winter in it and it's just now started blowing a little soot out the exhaust, I've noticed last 2 mornings. I'm going to open the access and do a little looksee tomorrow and maybe something will stand out.
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Old 01-18-2021, 06:11 PM   #2
bobbecky
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Whatever is causing that, there is a blockage or something causing a rich condition. Hopefully it is something easy to clear up without having to disassemble the furnace.
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Old 01-18-2021, 06:16 PM   #3
chuckster57
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Start by using compressed air, use an air nozzle and blow out the exhaust port. You can use high pressure ( up to 100 PSI).
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Old 01-18-2021, 07:13 PM   #4
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It sounds like a spider web, a dirt dauber nest or a wasp nest in the air intake. Compressed air, as Chuck suggested would be the "first attempt at home repair".
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Old 01-18-2021, 08:23 PM   #5
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Don't use a can of computer cleaner like Dustoff. Most of them are not compressed air but are compressed combustion able gas. Check the can for a "caution flammable" warning.
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