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Old 11-13-2019, 11:25 AM   #1
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Join Date: Dec 2018
Location: Imperial NE
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Winterizing procedures?

I have reviewed the Stickys and other threads but have not yet come across a detailed checklist for winterizing a motorhome. Does anyone have access to such a checklist or detailed procedures for winterizing the appliances?

As we head into our first winter with our 06 Intrigue, it is stored in a building with a heat source when the temp drops below 40. However, winter blizzards in western Nebraska are not uncommon and if the electricity is off, I believe the heat source could also be compromised. Thinking that we would be better off safe than sorry.

The Amana residential fridge has no access to the solenoid or water line that I have been able to find. We are concerned about the ice maker as well as the dishwasher, washer/dryer combo and electric toilet.

Any suggestions would be appreciated as there are no RV service providers within 200 miles.

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Old 11-13-2019, 12:24 PM   #2
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I just did mine for the first time Monday so it's fresh in my mind.
The fridge - if it's placed like my replacement residential unit - can still be accessed by taking off the panel on the outside of the coach. Mine has two fittings and a valve right there. I disconnected the fitting and blew out the water. With some coaxing, a lot of water ran out from the fridge side, and I blew out the feed side with 40 PSI of air.
I blew everything out with air by connecting to the water filler port (threaded).
I was going to leave it at that but after some further reading I decided to use antifreeze too. The water coils in the Hydro-Hot's heat exchanger can never be completely blown out, it seems, and it's several thousand dollars to fix. Six gallons of antifreeze was cheap!


2005 42' Country Coach Intrigue Ovation LE "Nairobi" #11868, Cat C-13
Him: USAF, Retired
With Skye the mini-Aussie velocimuncher
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Old 11-16-2019, 09:37 AM   #3
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Steve, doesn't the Hydro Hot system have antifreeze in it? I thought it would be okay. I too have an ice maker and washer/dryer combo and I've been watching these winterizing tips closely as I am wanting to winterize mine also.
Jim & Lupe Neidigh
2000 Country Coach Intrigue 40'
2018 F150 Fx4, Texas
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Old 11-16-2019, 09:41 AM   #4
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The Hydrohot does have antifreeze in the boiler and for the heating lines.
But there is also a coil inside the boiler that the fresh water runs through. This is nearly impossible to blow out with air or just drain. That is why RV antifreeze needs to be used.
If this coil freezes and burst it will be a very expensive repair.
2002 Newmar Mountain Aire 4095
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Old 11-16-2019, 09:49 AM   #5
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Join Date: Mar 2015
Posts: 157
Did mine last week for first time:

Used 30psi air to get air out of all faucets.
used pump to get antifreeze to both hot and cold line this takes care of MY 2014 Oasis Hydronic heating system.
Ran dish washer and verified pink.
Ran Washing machine and verified pink.
Maytag Refrigerator, left water off pump on and let ice machine cycle until no ice or water in ice try.
Placed Dryer sheets everywhere for mice.

Will be hooked up to 50 amp shore power so the only question I have is on Energy Management System for shore setting. I have it set for 50 amp charge...do I need to drop that to a lower setting?
Doug and Renee Tallman
2014 Newmar Dutchstar 4369
2018 Chevy High Country
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Old 11-16-2019, 10:50 AM   #6
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Originally Posted by Grandad5 View Post
Steve, doesn't the Hydro Hot system have antifreeze in it? I thought it would be okay. I too have an ice maker and washer/dryer combo and I've been watching these winterizing tips closely as I am wanting to winterize mine also.
Jim, Steve's hydrohot may not be the same as ours - we have the same coach with a 2000's Hurricane, there isn't a water coil in it, but coolant. That coolant goes to engine and water heater where it warms up water for domestic use. You do need to take care of water heater (Atwood 10 gallons). Not fun to fix WH if it bursts either.

Steven & Polly
2000 Country Coach Intrigue 40'
2014 Ford C-Max Energi
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