Forgot to get a make/model but do know it's a 10gal.Just purchased rig & flushed ALL the "pink stuff" out of her & did the bleach treatment. Flushed the system & now have fresh water with a fresh filter installed.Having issues with the hot water heater now.I triple checked the bypass valve, Even removed to to verify that it's NOT plugged. Reinstalled.How water heater fumctions on both LP & AC. It does indeed get up to temp. When turning on the hot water, after verifing the HWH was full I only et hot water for just a second.While I was working on the bypass valve I did discover the cover over the HWH. With cover removed I'm looking at the backside of the HWH.Center top rear it looks like a scald preventer, some type of valve on a hose. Perhaps this is my issue? Could this valve be preventing me from getting hot water?I double checked the water pump. God only knows how that pump was installed, It's way up behind the panel where the gae vales are located. I had to crawl in & lay pn my back in the dump station compartment. Water pump looks to have NO VALE for sucking up antifreeze. Also no screen on the intake side. I "believe" the whole house filter is ahead of the pump, possibly not.I'll post the make/model this evening.

Is your bypass valve open? You noted you confirmed it's not plugged...actually, an open condition on that middle valve would give you lukewarm water.Are you getting lukewarm water or straight cold?A mis-set scald preventer or open bypass should give you lukewarm.If either of the in or out valves on the water heater (usually top and bottom), then you should have cold."Just a second" makes it sound like something weird with the scald preventer. The make/model on that would be the most useful.

If every valve you can set manually is set correctly and your water is hot, my suspect would be a Check Valve.Your application may have none, one, or more than one. I think most have one or two, but this is a problem I've read about but not actually worked on.

What you describe is a Atwood XT model. That is a mixing valve on the back side. This model takes 10 gallons and produces 16 gallons. It has a 160 degree tstat instead of the standard 130/140. It mixes this higher temp with cold(the mixing valve you see) to produce 120/130 degree water. Common problem with these models is the mixing valve gets mineral deposits and then usually produces very little hot water and the valve needs replaced or if you are handy, clean it out. Doug

As stated in the main post I triple checked the by-pass, I even pulled it. The valve is fine.When I get home this PM I'll fill the system back up & try again.I'll post the results along with the make/model.When the by-pass is in the Normal mode Deb gets a quick shot of HW but then goes cold.I'm unable to COMPLETELY pull the cover over the HWH. I beed to trim some shelf supports to get the cover off. Ths "ant scald" looking valve Looks almost like a rotatable dial, Kinda like an inverted plactic shot glass.I'll supply some PICS Thansk

mthockeydad wrote:Is your bypass valve open? You noted you confirmed it's not plugged...actually, an open condition on that middle valve would give you lukewarm water.Are you getting lukewarm water or straight cold?A mis-set scald preventer or open bypass should give you lukewarm.If either of the in or out valves on the water heater (usually top and bottom), then you should have cold."Just a second" makes it sound like something weird with the scald preventer. The make/model on that would be the most useful.As stated in my original post;"Having issues with the hot water heater now.I triple checked the bypass valve, Even removed to to verify that it's NOT plugged. Reinstalled."

Issues with hot water heater | Good Sam Community

16 Replies

beemerphile1
Explorer
May 05, 2014
If you have a single bypass valve then you also have a check valve as pictured above.

Take a look at that check valve.
mchero
Explorer
May 05, 2014
mthockeydad wrote:
Is your bypass valve open? You noted you confirmed it's not plugged...actually, an open condition on that middle valve would give you lukewarm water.

Are you getting lukewarm water or straight cold?

A mis-set scald preventer or open bypass should give you lukewarm.
If either of the in or out valves on the water heater (usually top and bottom), then you should have cold.

"Just a second" makes it sound like something weird with the scald preventer. The make/model on that would be the most useful.

As stated in my original post;

"Having issues with the hot water heater now.
I triple checked the bypass valve, Even removed to to verify that it's NOT plugged. Reinstalled."
mchero
Explorer
May 05, 2014
As stated in the main post I triple checked the by-pass, I even pulled it. The valve is fine.

When I get home this PM I'll fill the system back up & try again.

I'll post the results along with the make/model.

When the by-pass is in the Normal mode Deb gets a quick shot of HW but then goes cold.

I'm unable to COMPLETELY pull the cover over the HWH. I beed to trim some shelf supports to get the cover off. Ths "ant scald" looking valve Looks almost like a rotatable dial, Kinda like an inverted plactic shot glass.

I'll supply some PICS

Thansk
dougrainer
Nomad
May 05, 2014
What you describe is a Atwood XT model. That is a mixing valve on the back side. This model takes 10 gallons and produces 16 gallons. It has a 160 degree tstat instead of the standard 130/140. It mixes this higher temp with cold(the mixing valve you see) to produce 120/130 degree water. Common problem with these models is the mixing valve gets mineral deposits and then usually produces very little hot water and the valve needs replaced or if you are handy, clean it out. Doug
j-d
Explorer II
May 05, 2014
If every valve you can set manually is set correctly and your water is hot, my suspect would be a Check Valve.

Your application may have none, one, or more than one. I think most have one or two, but this is a problem I've read about but not actually worked on.
mthockeydad
Explorer
May 05, 2014
Is your bypass valve open? You noted you confirmed it's not plugged...actually, an open condition on that middle valve would give you lukewarm water.

Are you getting lukewarm water or straight cold?

A mis-set scald preventer or open bypass should give you lukewarm.
If either of the in or out valves on the water heater (usually top and bottom), then you should have cold.

"Just a second" makes it sound like something weird with the scald preventer. The make/model on that would be the most useful.

Forum Discussion

Issues with hot water heater

16 Replies

About Technical Issues

Related Content

Atwood water heater problem

Water Heater Replacement Recommendations

Water Heater Leak on start up.

Suburban SW12DEL Water Heater On/OFF switch melts???

Water heater issues