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Old 01-31-2021, 12:40 AM   #1
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Brand: Thor Motor Coach
State: California
Posts: 3
THOR #22005
Heater blower weak on driver's side

Hi folks,

I could use your collective brainpower to help me diagnose my heater issues on my 2016 Thor Chateau 26A . In short, the left side of my RV is getting little to no heat from the furnace. I opened up and checked the incoming feed on the left side (labeled #8 in the diagram) and feel very little air being sent from the blower. The problem has to be on the passenger's side or the floor trough it just too small by design. The only problem is, I can't access the feed going to the floor trough (#2 in the diagram). Anyone have this issue on the Chateau 26A? Trying to determine it's just a bad design before I rip up my step up flooring and investigate further... Thanks!
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Old 01-31-2021, 12:49 AM   #2
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Brand: Still Looking
Model: Tiffin Wayfarer 24 BW
State: New York
Posts: 21,732
THOR #8860
Welcome to the forum.
Since those openings are on a slide: could the hose have come loose, or gotten hole in it?
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Old 01-31-2021, 01:51 AM   #3
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THOR #22005
It’s not actually on the slide. The bed above it slides. I think I’m going to have to rip up the carpet/plywood and investigate further.
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Old 01-31-2021, 02:07 AM   #4
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Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
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THOR #11781
How is the air coming out of the blower? Try taking off the hose and looking for debris or worse, a critter next in the hose feeding the trough. You could have construction debris in the hose or trough. Maybe disconnect at #8 and try blowing air back to the blower housing, disconnect from the blower of course. In my old class c, I had a rather large hole in the hose feeding the bedroom in the rear. You may have a hole or bad kink in hose #2.
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Old 01-31-2021, 02:20 AM   #5
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Brand: Thor Motor Coach
State: California
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THOR #22005
Good call. Maybe I’ll borrow a scope camera.
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Old 01-31-2021, 04:00 AM   #6
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Brand: Thor Motor Coach
Model: Citation
State: Texas
Posts: 760
THOR #8139
Amazon has several, cheap.
Search "endoscope or borescope".
I have one with a 35' cable.

Here's one that hooks to your phone, PC or tablet, 12' cable for $7.00.
https://www.amazon.com/Endoscope-Ins...s%2C237&sr=8-3
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