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Old 09-05-2017, 01:09 PM   #1
Kasual Kamper
 
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Increasing hot water heater temperature

We used our 21DS for our first full weekend this past Labor Day holiday. It was our first experience using the electric option on the Suburban hot water heater.

I found that although the hot water was adequate for a shower, it never really got hot. In fact, I had the cold water faucet turned off completely. On my old Mallard trailer with the Jade control, there was a setting that you could adjust, but I did not find the same thing on my 21DS. I didn't try to see if using propane to heat the water instead would make any difference. Has anyone else ever experienced this issue?
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Old 09-05-2017, 01:30 PM   #2
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Proper valve setting

Do you have the bypass valve closed? If it is open your water will not be hot.

WMTIRE has a post with a picture of the proper setting. The water line into the hot water tank valve should be open.

The Hot water line coming out of tank should be open.

Bypass line valve should be closed.


Make sure the valve in the middle is closed


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Old 09-05-2017, 01:43 PM   #3
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Quote:
Originally Posted by DAISY BOYKIN View Post
Do you have the bypass valve closed? If it is open your water will not be hot.

WMTIRE has a post with a picture of the proper setting. The water line into the hot water tank valve should be open.

The Hot water line coming out of tank should be open.

Bypass line valve should be closed.


Make sure the valve in the middle is closed

As Daisy Boykin explained, this is usually caused by the crossover valve not being closed, which allows cold water to be drawn into the hot water line. If you have an outdoor shower, it can do the same thing if you have the valves on, but the water shut off at the handheld wand.

Here is the thread Daisy Boykin referred to:

NO (OR LUKEWARM) HOT WATER -Please read first

Also there is a video (#3) at this link which explains the bypass valves and symptoms you describe:

Suburban Water Heater Video Guides
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Old 09-05-2017, 03:01 PM   #4
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Originally Posted by JayArras View Post
[...]It was our first experience using the electric option on the Suburban hot water heater.[...]
I think the problem is that you have one of the dreaded hot water heaters. As the name states, it only heats hot water. You want to swap it out with a plain old water heater that's capable of heating all temperatures of water.

Good luck.
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Old 09-23-2017, 01:50 PM   #5
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Originally Posted by wmtire View Post
As Daisy Boykin explained, this is usually caused by the crossover valve not being closed, which allows cold water to be drawn into the hot water line.
Yup! Finally had time to look into this and sure enough, the crossover valve was also open. I closed it, so now we'll see how things go on the next camping trip, which is Columbus Day weekend.

Thanks for all the assistance!
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