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01-12-2020, 12:26 AM
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#1
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Junior Member
Brand: Thor Motor Coach
Model: 24F
State: California
Posts: 6
THOR #17796
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Water collecting in ceiling light - Chateau 24F
Just purchased a 2019 Chateau 24F one week ago, and brand new to RVing.
There is a little water collection in the ceiling light just in front of the fridge.
When I remove the light I can see daylight up through a hole in the insulation, and then through a white vent in the roof (360 siphon). There is also another "360 siphon" vent above the light in the bathroom, but with that one there is no hole through the insulation.
There is a 3rd vent near the rear that is above the wall between the bathroom and bedroom which I suspect is a breather for the black water tank (I think that is what these vents are designed for)
Does any one know what the purpose of the 2 vents above the lights are? Photos attached I hope!
Thanks for any help, Mark
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01-12-2020, 02:50 AM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Citation
State: Texas
Posts: 920
THOR #8139
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Greetings and Welcome
Hope you get better remarks about the holes, light and roof than I would make .
I would have at the dealer Monday morning.
Sorry for my bad mood
Welcome to the forum
I'm curious what's in the picture?
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01-12-2020, 02:27 PM
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#3
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Senior Member
Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,410
THOR #2631
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Welcome to the forum.
I am not familiar with your coach but this is very strange.
Of course these plumbing vents (360 style or the cap style) are intended to be mounted over a plumbing pipe stack (black or grey tank vent pipe stacks specifically). This situation almost looks like a factory goof (not sure if 360 style vents are factory supplied typically or not on new rigs), where the stack roof opening was made in the wrong place and someone stuck this 360 vent over the roof hole. Of course some rain/water can still penetrate the vent screens on top and without an actual plumbing pipe stack there.....the water is going to get into the roof space. You definitely want to get this resolved ASAP by having all vents inspected and confirmed correctly installed.....over an appropriate plumbing vent pipe stack. In the mean time, you need to prevent any further water getting in through this vent screen. If the others are legitimate plumbing stacks then you don’t want to block them off.......you can usually use the quick smell test (while on the roof) to verify they are actually connected to your holding tanks.
It would also be worth contacting Thor with your pictures and obtain a plumbing diagram from them which shows where the factory stacks are “normally” located on your roof. If this is a “normal” location, the next question is where is the plumbing stack? It will be interesting to know what has happened here.
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01-12-2020, 02:34 PM
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#4
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Senior Member
Brand: Keystone
Model: Sprinter
State: Florida
Posts: 1,422
THOR #15553
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Quote:
Originally Posted by javelin
welcome to the forum.
I am not familiar with your coach but this is very strange.
Of course these plumbing vents (360 style or the cap style) are intended to be mounted over a plumbing pipe stack (black or grey tank vent pipe stacks specifically). This situation almost looks like a factory goof (not sure if 360 style vents are factory supplied typically or not on new rigs), where the stack roof opening was made in the wrong place and someone stuck this 360 vent over the roof hole. Of course some rain/water can still penetrate the vent screens on top and without an actual plumbing pipe stack there.....the water is going to get into the roof space. You definitely want to get this resolved asap by having all vents inspected and confirmed correctly installed.....over an appropriate plumbing vent pipe stack. In the mean time, you need to prevent any further water getting in through this vent screen. If the others are legitimate plumbing stacks then you don’t want to block them off.......you can usually use the quick smell test (while on the roof) to verify they are actually connected to your holding tanks.
It would also be worth contacting thor with your pictures and obtain a plumbing diagram from them which shows where the factory stacks are “normally” located on your roof. If this is a “normal” location, the next question is where is the plumbing stack? It will be interesting to know what has happened here.
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
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01-12-2020, 02:47 PM
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#5
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Junior Member
Brand: Thor Motor Coach
State: Texas
Posts: 14
THOR #14658
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The thing in the picture is the solar panel quick connect.
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01-12-2020, 05:06 PM
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#6
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Junior Member
Brand: Thor Motor Coach
Model: 24F
State: California
Posts: 6
THOR #17796
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Many thanks for the comments, and good to have what I suspected confirmed about the vent - will investigate further and report back.
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01-13-2020, 11:54 AM
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#7
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Senior Member
Brand: Thor Motor Coach
Model: Miramar 37.1
State: Virginia
Posts: 120
THOR #4468
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In my case, water collected in an overhead light due to the AC unit mounting bolts being loose. Easy to remove the ceiling grille(s) to check. While at that, consider making the AC airflow improvement. Do a search for details.
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2021 Miramar 37.1
2016 Jeep Cherokee Trailhawk TOAD
2018 Hurricane 31S (sold)
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01-13-2020, 04:42 PM
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#8
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Junior Member
Brand: Thor Motor Coach
Model: 24F
State: California
Posts: 6
THOR #17796
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Further update - I managed to remove the caps off all 3 vents. The one at the rear and the one towards the side both connect to breather pipes - Black water and grey water based on the smell test. However the 3rd is just a hole! It did have a TV co-ax cable tucked in it, so as suggested this is probably a mistake at the factory that they decided to cover up with a vent! With the top removed it should be pretty easy to cap it for a good seal.
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01-13-2020, 05:28 PM
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#9
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Senior Member
Brand: Thor Motor Coach
Model: Citation
State: Texas
Posts: 920
THOR #8139
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Quote:
Originally Posted by markevans
Further update - I managed to remove the caps off all 3 vents. The one at the rear and the one towards the side both connect to breather pipes - Black water and grey water based on the smell test. However the 3rd is just a hole! It did have a TV co-ax cable tucked in it, so as suggested this is probably a mistake at the factory that they decided to cover up with a vent! With the top removed it should be pretty easy to cap it for a good seal.
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Putting the coax for the roof mounted satellite dish in this is normal not the kind used on your mh.
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01-13-2020, 05:54 PM
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#10
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Junior Member
Brand: Thor Motor Coach
Model: 24F
State: California
Posts: 6
THOR #17796
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Spoke to Thor this morning - they confirmed it is for an optional satellite dish, but didnt explain why they used a plumbing vent!
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01-13-2020, 11:14 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: 2013 ACE 30.1
State: Alberta
Posts: 1,410
THOR #2631
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Thanks for posting an update on your situation. I agree with poster abjbrtd that the 360 style vent cap was not a great choice for a sat cable rough in (assuming that was factory installed). I would think there would be something better available (cap style; also as noted) with a moulded in cap label on it at least.......but I assume it comes down to cost/profit ratio in the end. Glad you noticed your water in the light fixture and are doing something about it before serious long term water damage can result.
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01-18-2020, 10:06 PM
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#12
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Member
Brand: Thor Motor Coach
State: Illinois
Posts: 69
THOR #13262
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Welcome to the forum. You will find some factory defects in the first year we sure did and questioned our decision but after all fixed we love it.
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01-19-2020, 05:53 AM
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#13
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Junior Member
Brand: Thor Motor Coach
Model: 24F
State: California
Posts: 6
THOR #17796
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Just to complete the post in case anyone reviews this in future, final fix was a 2" PVC pipe cap from Homedepot
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01-19-2020, 03:45 PM
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#14
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Senior Member
Brand: Thor Motor Coach
Model: Citation
State: Texas
Posts: 920
THOR #8139
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Did you show Thor, I can just see their reaction " duh now why didn't we think of that"
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