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Old 05-27-2012, 07:49 PM   #1
rhansme
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2003 Sprinter 249 RKS No Hot Water Pressure

I have a new to me, 249 RKS sprinter. I have solved all of it's riddles except one. I cannot seem to get any Hot Water Pressure other than a trickle. There is a one position bypass valve that when in the horizontal position I have cold water out of both the hot and cold side fawsetts. Thus bypassing the hot water tank, but when the valve is vertical I get a trickle of hot water like a valve is somehow stuck mostly shut and the cold water works fine. Could it be the check valve in the Hot water tank causing the problem. I have searched the trailer for another valve but there is none. The low hot water pressure is the same at all hot water fawsetts through out the trailer.

Thanks.

rhansme
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Old 05-28-2012, 03:44 AM   #2
SteveC7010
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Quote:
Originally Posted by rhansme View Post
Could it be the check valve in the Hot water tank causing the problem.
Yup, that would be the primary suspect. It should be a brass fitting on the rear of the WH where the hot water exits. It's a fairly easy replacement if you have any residential plumbing experience. Toughest part is getting to the back of the heater in some cases.
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Old 05-28-2012, 08:12 AM   #3
Greysquirrel
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Before you do any plumbing give the check valve a good hit with the handle of an adjustable wrench or the handle of a good size screwdriver that may solve the problem if not you will probably have to replace it.
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Old 05-28-2012, 08:50 AM   #4
rhansme
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That bugger is on tight! I gave it a good go to try and get it out, but I could not budge that fitting. I will try hitting it a couple of times to see if I can loosen up some of the scale from the anode rod. It was pretty eaten up. I sprayed water in and got out some of the loose sediment but I am sure that the check valve is clogged up. Thanks for the tips guys. I may have to take it in for service, but it is a company trailer and they will be on the hook for the bill. I gave it a good go but I am not "Joe Plumber" and my home tools are not adequate for the job it appears.
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Old 05-28-2012, 12:17 PM   #5
hankpage
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Ya just need a bigger hammer. You are right ... in most cases they don't give you much room for leverage.
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