No Hot Water Pressure In My RV - What Do I Do?

by Ed
(Lakeside, Ca.)

Question: I have a 2007 Outback 230RS with a 6 gallon Atwood hot water heater. All of a sudden there is no water pressure on the hot side at all faucets. The cold side works fine and has ample pressure. I drained and flushed out the hot water heater a couple of times with some calcium deposits flushed out. Still no pressure or water flow from the hot side. Heater seems to work fine but no water pressure. The hot water outlet on the rear of the tank seems to be unreachable in the compartment. I'm at a loss. Thank you.




Robbie: I'm sure if you look on the rear of your water heater you will see a check-valve where either the top and/or bottom waterline connections are. Cold water goes in the bottom and hot comes out the top. If you remove the valve (or valves) and find it's full of calcium deposits, I suggest you buy a new check valve from a local RV store. You can remove it completely if you'd like as it only prevents back pressure and replace with a 1/2" by 2" coupler from any hardware store. Using a coupler will also limit the chance of you having to replace it again in the future because of a calcium build up.

Thanks for the Question Good Luck,
Robbie

Comments for No Hot Water Pressure In My RV - What Do I Do?

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Jan 25, 2016
Bypass valve !
by: eloy escalante sr

Bypass valve!
Thanks v much for suggestions ! Mine has, a,, valve for flow on one position and bypass on the other position.

Feb 02, 2016
low hot water prressure
by: Anonymous

Thank you very much. Took gut`s out of check valve on hot water side of tank.Hot water pressure better than ever.Booking marking your web-site. Snow bird Mike. Currently in Naples Fla.

May 29, 2016
gutless
by: satisfied

trouble shot every possible problem thinking there was an obstruction in one of the lines. Read this forum, and decided by process of elimination, I needed to go here before I ordered a new camper that came with new parts ( lol ). Found the check valve ( plastic part) had broken off one end. Took complete assembly out including the spring, applied new tape to threads, and reinstalled. Pressure is back where it should be if not better. Love the forum, and thanks for all the postings.

May 15, 2017
Fix your hot water check valve. NEW
by: Terry

I just had the same problem with my hot water not flowing from my heater tank. I removed the brass check valve at the exit from the tank (at the top), saw that it was crusty with deposits causing the plastic stopper to jam. So I put the valve in a coffee cup and filled it with vinegar and the deposits dissolved in a couple minutes. It works like new so I'm reinstalling it.

I ordered a new valve anyway just in case and I found out my anode was pretty much gone so I ordered a new one also. But less than an hour's work and a cup of vinegar and I'm back in business.

May 15, 2017
Fix your hot water check valve. NEW
by: Terry

I just had the same problem with my hot water not flowing from my heater tank. I removed the brass check valve at the exit from the tank (at the top), saw that it was crusty with deposits causing the plastic stopper to jam. So I put the valve in a coffee cup and filled it with vinegar and the deposits dissolved in a couple minutes. It works like new so I'm reinstalling it.

I ordered a new valve anyway just in case and I found out my anode was pretty much gone so I ordered a new one also. But less than an hour's work and a cup of vinegar and I'm back in business.

May 31, 2017
Can't find the check valves NEW
by: Jones

I have pulled off the only connectors that I can find that could possibly be the check valves and none of them are. I am experiencing the exact problem described previously and checked everything I can find but no valve that I can find seems to exist. Any other ideas what would be causing this?

Jul 07, 2017
west hills,cc. NEW
by: georgeAnonymous

UI have the problem with very small water flow .It is still hot so the heater is working. I changed the anode which was totality gone. But folw seems to be partly blocked. To get to the check valve do you remove the heater out of the coachman Mirada 2004 model atwood model g6a8e ?GS

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Robbie Warford, San Diego RV Repair

Hi, I'm Robbie. Welcome to Money-Saving-RV-Repair.com!

Like the name implies, this site is all about helping you save money while keeping your RV in tip-top shape--and that is all about you having the knowledge to do so.

I've been a technician in the RV industry for 30 years, operating out of San Diego, California. And let me tell you, I love my job.

But I also love empowering RVers with the knowledge they need to make the right decision on repairs, or to make the fix themselves--and that, my friend, is the reason for this website. I hope you enjoy.

Or, learn more about me, my RV service practice, & this website here.