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02-24-2022, 11:58 AM
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#1
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Member
Brand: Thor Motor Coach
Model: Challenger 37XL
State: Maine
Posts: 30
THOR #24376
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Propane water heater popps / backfires
Thanks in advance for reading my post.
The 110v portion of the water heater does not work at all and just the last couple days the propane portion backfires. Sometimes it actually shoots a flame out the vent. So it's a 2017 Challenger 37LX. I have had it for 6 months (3rd owner) 3 weeks into our 1st trip 3400 miles so far. We are going to have below freezing temps here for the next couple months. If the 110 side worked I would use it, but now my generator is cutting out more and more with a 14 fault code. BTW..The coach is level and the wind is not blowing
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02-24-2022, 12:35 PM
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#2
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Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,447
THOR #17765
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Generator - https://www.rvandplaya.com/how-to-fi...nan-generator/
Check your water heater tube for insect/blockage. Not knowing your brand water heater, maybe there’s a breaker either inside or outside tripped? Loose wire? Have you searched this forum?
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02-24-2022, 12:49 PM
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#3
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Member
Brand: Thor Motor Coach
Model: Challenger 37XL
State: Maine
Posts: 30
THOR #24376
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Water heater problems
Thanks for the response,
All is good with what you mentioned. Forum search came up with zero
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02-24-2022, 12:55 PM
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#4
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Senior Member
Brand: Thor Motor Coach
Model: ACE 33.1
State: Massachusetts
Posts: 115
THOR #26005
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Did you purge the line? Shut off the heater and turn the stove on. See if theres air coming out of it
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02-24-2022, 01:17 PM
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#5
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Member
Brand: Thor Motor Coach
Model: Challenger 37XL
State: Maine
Posts: 30
THOR #24376
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Water heater problems
Thans for the response. No air in the propane system
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02-24-2022, 01:19 PM
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#6
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Senior Member
Brand: Thor Motor Coach
Model: ACE 33.1
State: Massachusetts
Posts: 115
THOR #26005
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Im assuming that these MH furnace need to be serviced as well like at our homes. Has it ever gotten a service?
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02-24-2022, 01:30 PM
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#7
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Member
Brand: Thor Motor Coach
Model: Challenger 37XL
State: Maine
Posts: 30
THOR #24376
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Water heater problems
Could you tell me what a water heater service for a MH would include?
Mine works but sometimes when it reheats the water, I get these backfires.
As A home owner for 50 years I have never had my water heaters serviced. per se!. I drain the water from the heater every year and replace them ever 5 or 6 years. That would not have anything thing to do with the igniting of the fuel at a proportion to cause an explosion.
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02-24-2022, 01:30 PM
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#8
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,360
THOR #7035
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Quote:
Originally Posted by Ntrinh15
Im assuming that these MH furnace need to be serviced as well like at our homes. Has it ever gotten a service?
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Furnace? This thread is about a water heater.
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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02-24-2022, 01:36 PM
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#9
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Site Team
Brand: Thor Motor Coach
Model: ACE 27.1
State: Florida
Posts: 14,360
THOR #7035
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Quote:
Originally Posted by b-dent
Thanks in advance for reading my post.
The 110v portion of the water heater does not work at all and just the last couple days the propane portion backfires. Sometimes it actually shoots a flame out the vent. So it's a 2017 Challenger 37LX. I have had it for 6 months (3rd owner) 3 weeks into our 1st trip 3400 miles so far. We are going to have below freezing temps here for the next couple months. If the 110 side worked I would use it, but now my generator is cutting out more and more with a 14 fault code. BTW..The coach is level and the wind is not blowing
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Have you been to YouTube University?
https://www.youtube.com/results?sear...flame+sputters
https://www.youtube.com/results?sear...lt+not+working
__________________
Ted & Melinda
2016 ACE 27.1
2016 Chevy Sonic Toad - Selling
2020 Chevy Colorado Z71 Trail Runner Toad
2024 Chevrolet Trax 2RS - Soon 2B TOAD
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02-24-2022, 01:37 PM
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#10
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Senior Member
Brand: Thor Motor Coach
Model: ACE 33.1
State: Massachusetts
Posts: 115
THOR #26005
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Quote:
Originally Posted by 16ACE27
Furnace? This thread is about a water heater.
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Lol sorry
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02-24-2022, 02:17 PM
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#11
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Senior Member
Brand: Thor Motor Coach
Model: 34E Hurricane
State: Michigan
Posts: 257
THOR #25490
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The tiny orifice may have eggs or web inside. Turn propane off. Remove orifice and clean with compressed air before and after the orifice. If that does not fix it, there is an issue with the system and it needs good research or a good technician. Good luck. (PS - I had the bug eggs one year. I did finally find Mr. Bug dead but downstream quite a ways.)
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02-24-2022, 02:19 PM
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#12
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Senior Member
Brand: Thor Motor Coach
Model: Hurricane 31S
State: Texas
Posts: 4,180
THOR #6411
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Quote:
Originally Posted by b-dent
Thanks in advance for reading my post.
The 110v portion of the water heater does not work at all and just the last couple days the propane portion backfires. Sometimes it actually shoots a flame out the vent. So it's a 2017 Challenger 37LX. I have had it for 6 months (3rd owner) 3 weeks into our 1st trip 3400 miles so far. We are going to have below freezing temps here for the next couple months. If the 110 side worked I would use it, but now my generator is cutting out more and more with a 14 fault code. BTW..The coach is level and the wind is not blowing
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The propane section of the Atwood water heater has a DSI ignition and uses the propane pressure to establish flame flow through the burner tube. Alignment of the spark and mixture is critical to start and to maintain a constant flame front. You can read how to so in the service manual or take it to a authorized service center and have it checked.
I am reluctant to give service advice to those who have to ask how to repair faults because the is the possibility of an explosion if the attempted service is done incorrectly, so my advice is to read the service manual and proceed carefully if you feel confident.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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02-24-2022, 02:20 PM
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#13
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Member
Brand: Thor Motor Coach
Model: Challenger 37XL
State: Maine
Posts: 30
THOR #24376
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OK thanks, I just watched a Utube video I guess I'll have to take some things apart.
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02-24-2022, 02:55 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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Have you worked on the electric heating problem?
Might be the heating element, if the tank has been empty and electric on
Lowes, Home Depot etc have 120 VAC elements.
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"I just want to find eleven thousand seven hundred and eighty
DJT votes"
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02-24-2022, 03:22 PM
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#15
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Member
Brand: Thor Motor Coach
Model: Challenger 37XL
State: Maine
Posts: 30
THOR #24376
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Hope you find your missing votes, If you find them what is to be done?
As Far As The (AFAT) electric problem I need to get the intermittent propane water heater fixed first, then maybe my generator #14 trouble code then maybe the electric water heater. then maybe my main slide (it needs help to go in and out). then there is this engine light, and then the intermittent light with the power vacuum issue with the engine. then my bedroom TV does not turn on. can't get the speaker bar to work, the analog satellite TV does not get reception here, so the wife wants a dish. I think I have most everything else. Oh wait, the holding tanks partially freeze up (the Thor brochure says they are heated, tech support says they are heated by the propane interior heater HA HA) but I fixed the valves and water pump freezing issue by adding small ceramic heater to each of the related basement areas, but I have extension cords hanging outside the coach while going down the road. So I need to install 110v receptacles in those two bays and install heating pads for the 4 holding tanks. I did get the new door lock to work but it still hits the screen door (must be from overseas?) my wife can't open it. I am sure there are some other things I need to do like add a petcock to the overflows on the potable water tank (Lost half a tank getting set up yesterday) but I really need to get ready for 18" of snow tonight. Deep breath, and I am still in my PJ'S
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02-24-2022, 03:47 PM
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#16
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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 b-dent
Hope you find your missing votes, If you find them what is to be done?
As Far As The (AFAT) electric problem I need to get the intermittent propane water heater fixed first, then maybe my generator #14 trouble code then maybe the electric water heater. then maybe my main slide (it needs help to go in and out). then there is this engine light, and then the intermittent light with the power vacuum issue with the engine. then my bedroom TV does not turn on. can't get the speaker bar to work, the analog satellite TV does not get reception here, so the wife wants a dish. I think I have most everything else. Oh wait, the holding tanks partially freeze up (the Thor brochure says they are heated, tech support says they are heated by the propane interior heater HA HA) but I fixed the valves and water pump freezing issue by adding small ceramic heater to each of the related basement areas, but I have extension cords hanging outside the coach while going down the road. So I need to install 110v receptacles in those two bays and install heating pads for the 4 holding tanks. I did get the new door lock to work but it still hits the screen door (must be from overseas?) my wife can't open it. I am sure there are some other things I need to do like add a petcock to the overflows on the potable water tank (Lost half a tank getting set up yesterday) but I really need to get ready for 18" of snow tonight. Deep breath, and I am still in my PJ'S
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Brad didn't find them
WOW that's the same list I have, but spread over 6 years.
It's a good thing $s,$$$.00 you're wanting to fix them yourself
BIG money + it would take a "normal" dealer years to fix them
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"I just want to find eleven thousand seven hundred and eighty
DJT votes"
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02-24-2022, 10:52 PM
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#17
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Senior Member
Brand: Thor Motor Coach
Model: Forest River Forester 235
State: Indiana
Posts: 4,884
THOR #6826
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Is this a recent problem or has it always done this? I replaced my water heater not long ago and the new one did that. I adjusted the combustion air volume and it settled right down. Mine was burning too rich. You can test that by opening your outside cover while the burner is on. Use your finger to block part of the air inlet and see if the flame settles down. It’s a simple set screw to adjust the slide. Good luck.
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02-25-2022, 12:21 AM
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#18
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Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,447
THOR #17765
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Quote:
Originally Posted by Ntrinh15
Did you purge the line? Shut off the heater and turn the stove on. See if theres air coming out of it
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His electric won’t work.
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02-25-2022, 02:14 AM
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#19
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Senior Member
Brand: Thor Motor Coach
Model: A.C.E. 27.2
State: Indiana
Posts: 1,884
THOR #14698
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Quote:
Originally Posted by Jimbo56
His electric won’t work.
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He also said his heater was popping and backfiring on gas
__________________
2018 ACE 27.2
Toad 2019 Jeep Cherokee Trailhawk
Roadmaster Falcon All Terrain Towbar
Roadmaster Invisibrake
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02-25-2022, 11:05 AM
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#20
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Senior Member
Brand: Thor Motor Coach
Model: Freedom Traveller A27
State: North Carolina
Posts: 2,447
THOR #17765
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Quote:
Originally Posted by b-dent
Hope you find your missing votes, If you find them what is to be done?
As Far As The (AFAT) electric problem I need to get the intermittent propane water heater fixed first, then maybe my generator #14 trouble code then maybe the electric water heater. then maybe my main slide (it needs help to go in and out). then there is this engine light, and then the intermittent light with the power vacuum issue with the engine. then my bedroom TV does not turn on. can't get the speaker bar to work, the analog satellite TV does not get reception here, so the wife wants a dish. I think I have most everything else. Oh wait, the holding tanks partially freeze up (the Thor brochure says they are heated, tech support says they are heated by the propane interior heater HA HA) but I fixed the valves and water pump freezing issue by adding small ceramic heater to each of the related basement areas, but I have extension cords hanging outside the coach while going down the road. So I need to install 110v receptacles in those two bays and install heating pads for the 4 holding tanks. I did get the new door lock to work but it still hits the screen door (must be from overseas?) my wife can't open it. I am sure there are some other things I need to do like add a petcock to the overflows on the potable water tank (Lost half a tank getting set up yesterday) but I really need to get ready for 18" of snow tonight. Deep breath, and I am still in my PJ'S
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It sounds as though this will be a challenging trip. Where are you traveling to?
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