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Old 12-24-2018, 08:23 AM   #1
Junior Member
Join Date: Feb 2016
Posts: 17
Winnebago Furnace Problem

I had a problem with my AC rooftop unit (1999 Winnebago Adventurer) - squeaking struggling to start-up. The fan would initially struggle to start and would eventually run smoothly. To "head off" a problem, I replaced the fan motor and the accompanying capacitor. After that the AC ran smoothly and functioned as it should. When cold weather arrived, the furnace ran smoothly for a couple of times, then stopped working one night. The next day, I turned off the furnace at the thermostat, and turned back on. It struggled to run for a short period and then shut down. It now doesn't work at all. I since learned that the AC unit and the furnace run off the same control board. To test this, I turned on the AC unit, and it now doesn't work. Does this mean that my problem with the furnace, and now the AC unit, is a faulty control board? The control board I am referring to is left of my Suburban furnace. Is this the one that controls the AC and furnace or is there another one?

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Old 12-24-2018, 10:06 AM   #2
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Ford Super Duty Owner
Join Date: Dec 2005
Location: Buxton, North Dakota
Posts: 3,517
I believe it is just a thermostat that controls the AC and furnace. In my 99 Brave I have two thermostats. One is for the AC only and one is for the AC and furnace. You may just have to clean the switch contacts. Move the switch between Heat and Cool several times. Also, check for a loose connection on the connector. Also, check breakers and fuses for the furnace.

2003 Winnebago Adventurer 38G F53/ V10 605 watts of Solar
1999 Winnebago Brave 35C F53V10 Handicap Equipped
1999 Jeep Cherokee, 1991 Jeep Wrangler Renegade and 2018 Chevrolet Equinox Diesel
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Old 12-24-2018, 03:20 PM   #3
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Join Date: Oct 2014
Location: Cypress River Manitoba
Posts: 217
Mine did the same thing and after needing to move the Heat/Cool slider switch with surgical precision a few too many times I just changed the thermostat. I found an identical unit for a reasonable price and now it works like it should
2004 Itasca Sunrise W22 chassis GM 8.1 Allison 1000 Towing a 2007 Chevy Cobalt four wheels down.
Switchflicke is offline   Reply With Quote

ace, furnace, problem, winnebago

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