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Old 10-14-2018, 07:26 PM   #1
Junior Member
Join Date: Feb 2017
Posts: 11
Suburban SF-42Q Heater

I have a 2017 Cardinal with a Suburban SF-42Q furnace. It has been working fine until this past weekend. I am at about 5000’ and have not had issues until the rain set in. When it’s raining outside the flame does not stay lit. Once it stops raining it works fine again. I have seen some old blogs stating this type of issue. Has anyone found any solutions to this issue.

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Old 10-15-2018, 11:59 AM   #2
Head Rambler
Join Date: Mar 2008
Location: Southwest Alabama
Posts: 7,226
Sounds like the moisture may be shorting out the flame sensing unit and shutting down the furnace.

Please let us know if you figure out exactly what's causing the problem.
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
Bama Rambler is offline   Reply With Quote

heater, suburban

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