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Old 01-02-2016, 08:43 AM   #1
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Furnace questions on 268RKS

Just used my furnace for the first time this week and when the trailer is plugged into shore power the whole roof unit turns on along with the floor vent when the furnace is turned on. it's louder than hell and ends up blowing cold air out the ceiling vents. When it's running on 12v the roof unit stays off and just the furnace fan and floor vents are on. Seems to work just as well if not better and is completely quiet. Is there any way to keep the roof unit off when plugged into AC power? I know it's probably trying to recirculate air or something but it's insanely loud and creates a wicked draft of cold air

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Old 01-02-2016, 10:55 AM   #2
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Put your thermostat to "auto".....see manual starting page 7.....
Attached Files
File Type: pdf Dometic Thermostat- Single Zone Digital.pdf (1.40 MB, 56 views)

2011 Rockwood 8319SS with ProPride 3P hitch/GoodYear Marathons/TST TPMS 507
2008 F250 Lariat CC SB 6.8L V10 4.10 axle ratio (NITTO TERRA GRAPLER G2 LT275/65R20E)
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Old 01-02-2016, 11:03 AM   #3
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Glen & Lee
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Old 01-04-2016, 07:57 AM   #4
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Yes, what fonzie said.. when running the furnace, set the thermostat fan setting on auto. When running the AC, keep the fan setting on lo or hi. I have not had my Vibe in heat yet, but on my last rig I noticed the AC coils would freeze over when I had the AC on Auto.
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Old 01-04-2016, 08:40 AM   #5
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Thanks everyone, works perfect now. I assumed Fan was just a setting to recirculate air when neither heat or cool was on
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Old 01-05-2016, 10:57 AM   #6
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If you are finding a strong blast of air coming from the main vent on the roof a/c, not sure if you are aware that you can slide the roof vent "closed" on the ceiling. This will redirect the air flow to the other ceiling vents on the ceiling. Didnt know if you were aware of this white plastic slide vent...

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