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Old 10-29-2013, 02:48 PM   #1
Junior Member
Newmar Owners Club
Join Date: Dec 2010
Location: Fort Worth, TX
Posts: 22
Hydro Hot blowing white smoke

I discovered what was causing this on my 07 Newmar Mountain Air and wanted to save others some time if they have the same issue. I searched all over the web trying to find suggestions on white smoke before I tore into it but could not find anythings, so here we go:
I found two things had happened.
1. The electrodes had slipped down toward the blower about 1/16th of an inch so they were not igniting the fuel like they should. This contributed to erratic ignition or that is what it sounded like.
2. The air intake screw had vibrated loose and the gap had gradually closed enough to starve the fire, which may have also been part of the erratic ignition.
I used the metering tool screwed to the side of the blower to set the electrodes up where they belong. Change the fuel nozzle while i was in there and opened the air intake to the factory marked paint line and tighten it. Solved the problem.
Hope this helps someone. This site has saved me a lot of time and money so I always post what I find.
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Old 10-29-2013, 02:54 PM   #2
Registered User
Monaco Owners Club
Join Date: Oct 2009
Location: Varies Depending on The Weather
Posts: 8,517

May I suggest that for the future you join the Hydronics Heating Forum owned by Roger Berke who is one of the country's leading Aqua-Hot service technician. He can actually help out a lot on Hydro Hot systems.

Roger is also a member here but he most likely spends more time on the Hydronics Heating forum.

Glad you got it fixed.

Dr4ilm ----- Richard
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