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Old 10-14-2017, 06:06 AM   #1
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Winterizing redhawk 31xl

We are getting frost warnings at night now up here in Canada. It's time to winterize our 2016 Redhawk 31xl (for the first time). There is nothing in the manual about bypassing the water heater. Before I go rooting around for valves does anyone know where they might be? From the location of the water heater I'm assuming they would be behind the oven on the inside but really not sure if they even exist. Thanks for the help.


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Old 10-14-2017, 11:04 AM   #2
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If its a tankless water heater there are no valves
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Old 10-14-2017, 11:04 AM   #3
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If your 2016 Redhawk has the Girard Tankless water heater then there's a real good chance you do not have bypass valves. My '16 Greyhawk doesn't.

There's no tank so no need to bypass.

I just winterize (after removing the filter)
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Old 10-14-2017, 11:08 AM   #4
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If the water intake is the same as my 17 Greyhawk pull out the intake screen and turn around to open bypass valve. Can't pump antifreeze if you don't.
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Old 10-14-2017, 02:39 PM   #5
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Originally Posted by pconroy View Post
If your 2016 Redhawk has the Girard Tankless water heater then there's a real good chance you do not have bypass valves. My '16 Greyhawk doesn't.

There's no tank so no need to bypass.

I just winterize (after removing the filter)


Thanks pconroy I have the Atwood water heater not the waterless Gerard.


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Old 10-14-2017, 02:40 PM   #6
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If the water intake is the same as my 17 Greyhawk pull out the intake screen and turn around to open bypass valve. Can't pump antifreeze if you don't.


Roger thx rchlap.


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Old 10-14-2017, 06:32 PM   #7
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Don't forget your sink sprayer and outside shower if equipped.

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Old 10-15-2017, 06:00 AM   #8
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The bypass valves should be under the oven/stove or fridge behind a cabinet panel/door down near the floor. Just look for a cabinet door near the floor and open it up. My 08 GH has a handle on the panel with hinges, but yours may be screwed on.
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Old 10-15-2017, 06:48 AM   #9
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The bypass valves should be under the oven/stove or fridge behind a cabinet panel/door down near the floor. Just look for a cabinet door near the floor and open it up. My 08 GH has a handle on the panel with hinges, but yours may be screwed on.


Copy thanks jimp.


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Old 10-15-2017, 07:17 AM   #10
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We have the 2016 31XL as well. The bypass valves are behind the access panel below the kitchen sink (lower right side of cabinet).
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Old 10-05-2021, 11:16 AM   #11
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Would anyone have simple directions to winterize the rest of the coach? I need a cheater sheet. The manual to me is complicated
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Old 10-05-2021, 01:03 PM   #12
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OP here. I added techteon by chevron. Autozone had a BOGO sale. So I dumped it in and filled her up! Wow, big difference!, NOT Really. But it made me feel better, not just knowing it might help my chassis engine but hopefully it will benefit my gas generator, that sips off my fuel tank, also.

All through the 80’s I was an Auto Mechanic and switched to a railroad heavy equipment maintainer, then left the industry for another career by 1990. I’ve tore down plenty of engines. One thing I remember was valves alway had plenty of carbon build up, intake valves and EGR valves were pretty gunned up too, but then again that was then, engines and fuels were not the same as today.


I remember in the late 80’s, working for Toyota, they had this fuel injector cleaner in a silver can, with the old Toyota racing stipes on it. I’d put a can in a customers car that had a rough idle, let’er run for a while, and amazingly the engine would run smoother and smoother as the injectors started to emulsify again rather then dribble. Stuff was amazing!
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Old 10-05-2021, 01:17 PM   #13
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Old 10-05-2021, 03:13 PM   #14
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Would anyone have simple directions to winterize the rest of the coach? I need a cheater sheet. The manual to me is complicated

I put this together so my wife could winterize our 2106 31FK.
Your model may require some changes.


https://www.dropbox.com/s/cdpty2ayry...izing.pdf?dl=0
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Old 10-05-2021, 06:22 PM   #15
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Best instructions I have ever seen .
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