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Old 12-19-2018, 12:33 AM   #1
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Brand: Thor Motor Coach
Model: Chateau 31L
State: Florida
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THOR #12189
Roof-Mount A/C Unit Schematic

I accidentally hit the cool setting tonight and hear a thump, thump zzzzz, coming out of the A/C fan. To me it sounds like something worked it's way into the A/C unit.

I work the fan on/off a couple of times and the thump, thump turns to scrape, scrape. If it was a rodent, we've given it a haircut - #3 buzz to be exact. But no smell.

I want to jump on the roof tomorrow and pull the A/C cover only I want to have a roadmap before I get bold. I want to know where the fan is in advance.

Anyone have an IPB of the roof A/C unit, showing the location of the fan?
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Old 12-19-2018, 01:31 AM   #2
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Brand: Thor Motor Coach
Model: 2016 Siesta Sprinter 24ST
State: Florida
Posts: 307
THOR #2812
There are a number of different RV roof AC's. Bryant has service manuals for most. Service Documents and Manuals
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Old 12-19-2018, 03:16 AM   #3
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Model: ACE 27.1
State: Florida
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THOR #7035
Take the cover off. The fan locations will be obvious.
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Old 12-19-2018, 05:06 AM   #4
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Model: 2017 Axis 25.4
State: Arkansas
Posts: 2,358
THOR #12231
Did it sound like the fan on the inside of the RV? Take the cover off from the inside (only 6 screws hold mine on) and you can see the squirrel cage fan. Otherwise only 4 screws hold on the outside cover (But you might see a live squirrel so be careful!).

Or could be Santa elf caught in the fan since you didnt have a fireplace? Ho Ho Ho. LOL.
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Old 12-19-2018, 02:15 PM   #5
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Model: Chateau 31L
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THOR #12189
Thank you for feedback/suggestions (and humor). Will check it out later today. 4 bolts on top are sealed (like caulked). Will tackle inside first and breaks seals 'in case of emergency'.
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