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03-16-2024, 06:28 PM #1
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Heeellllpppp New RV owner with a water problem
Hi everybody! Grand Design Reflection 150
I just got my RV last year and I winterized it as directed. So today I was flushing my lines with city water. Then...when I went to open all the faucets etc., water came gushing out of my Furrion in-line heater OUTSIDE. It looked like the water was coming from above and behind the unit. I"m talking gusher.
Can anyone tell me what has happened and what I can do to fix it?
Thanks in advance, Al
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03-16-2024, 07:53 PM #2
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03-17-2024, 07:08 AM #3
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As @NB Canada suggests, it likely froze and cracked over the winter. "As directed" can mean several things when it comes to the tankless water heaters: 1) what the dealer tells you, 2) what's in the GD manual, and 3) what Furrion tells you. Only the Furrion method is correct (unless the dealer is going by that).
RobU.S. Army Retired
2012 F350 DRW CC LB Lariat PS 6.7
2020 Solitude 310GK-R, MORryde IS, disc brakes,
Sailun LRG tires, solar, DP windows, W/D
(Previously in a Reflection 337RLS)
Full time since 08/2015
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03-18-2024, 12:32 PM #4
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I would say it sounds like it broke. You should fix it where it broke.
2021 Grand Design Reflection 278BH (150)
2022 Ford F-350 Lariat Godzilla SRW
B&W Companion Ford OEM 20k with Turning Point
2019 Ram 2500 Big Horn 6.4 gas (SOLD)
2020 Grand Design Imagine 21BHE (SOLD)
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03-18-2024, 09:47 PM #5
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The Furrion tankless water heater uses a mixing bowl on the back side that cannot be drained. It relies upon getting enough antifreeze into it to prevent freezing. If it does freeze and crack the part is not replaceable and you will need a new water heater. You might be able to find someone to repair it. If you search Youtube there is a video where a gentleman explains how we had one repaired for his daughter's trailer and also fixed it so it could be drained as part of winterizing.
2023 Imagine XLS 22MLE
2023 F-150 3.5L Ecoboost
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03-19-2024, 09:51 AM #6
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If memory serves, furrion tells you to blow it out with compressed air then fill with antifreeze.
GMC 2500 HD Gas
GD Imagine XLS22 MLE
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03-19-2024, 11:30 AM #7
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Furrion does state this.
A common problem that occurs is the owner/servicer didn't use antifreeze or use enough antifreeze to dilute the residual water in the mixing bowl enough to prevent hard freezing. This can result in the bowl or its plumbing cracking and those parts aren't orderable. I suspect that Furrion's position is if one part of the water heater has freeze damage other areas likely have damage too making it unsafe to operate the water heater. With the potential safety issue the only sure way to guarantee the repair is to require a full replacement of the heater.2023 Imagine XLS 22MLE
2023 F-150 3.5L Ecoboost
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03-19-2024, 12:01 PM #8
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I believe that the on-demand hot water heater is bypassed when you turn the dials to "winterize" mode. Stupid. Same thing happened to my brother-in-law. There are actually 2 fittings that can be removed to drain it IIRC.
2016 Ram 3500 6.7L
2020 Reflection 303RLS
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03-21-2024, 07:53 AM #9
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Thank you so much, gentlepeople! I gave up and took it to the dealer. They suspect (of course $$) that it was damage due to incomplete winterization (or too late in the season, after a freeze). I went ahead with my camping trip to Stonewall, just did it without water. It really didn't slow us down and we had a great time (until wind damaged both my canopy and door lol). Auto level still almost worthless. I'll keep you all filled in on the diagnostics and repairs. Thanks again so much, and I'm glad I found this forum! Al
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03-21-2024, 07:56 AM #10
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I did this! I was careful to watch the pressure. All pink liquid drained when I was "unwinterizing" it, so I thought I had good coverage. It sucked in the projected amount, etc. Furrion gave an "E1" error. Thank you!
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