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Old 05-28-2024, 05:11 PM   #1
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Water heater

Has anyone had any issues with the heater locking out? Mine would not heat and the lights remained lit. According to the manual it was locked out but there were no checks or troubleshooting to try to determine the cause. Anyone got any suggestions?
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Old 05-28-2024, 10:59 PM   #2
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Welcome to the forum Tim.
You must give more information to get a good answer. Your rig, what kind of water heater, did it work before, what was happening before it started? Etc. the more information the better.
I have no idea what (locked out) would mean for any water heater. Never heard that term for one. Maybe clarify that too.
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Old 05-29-2024, 04:49 PM   #3
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Thanks After going over the manual I may have missed a step. going to try it out this weekend. Thanks for your comment.
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Old 05-29-2024, 04:54 PM   #4
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We're still wondering what heater locking out means.
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Old 06-03-2024, 03:46 PM   #5
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Sorry for the delay in answering.
First a lockout is when a conditon exists that prohibits the heater operation. Whe this occurs the system will "lockout" and not operate until the condition is corrected.
Second, I did a test after I got home and hooked up to city water and checked for water at the tank by unscrewing the tank drain plug. Water did not come out. On page 99 of the Redhawk manual it shows a valve C which if open bypasses the
water heater. I looked under the stove wher the heater is located and did not see hte valve. Anyone know where the valev is located?
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Old 06-03-2024, 04:42 PM   #6
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Tim, does your Redhawk have the utility center or not?
If there are not three valves at the back or the WH, then you probably have the control center.
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Old 06-03-2024, 05:28 PM   #7
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Yes I have a control center. I will check the back of the WH again.
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Old 06-03-2024, 06:10 PM   #8
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I’m sorry Tim, but the manual leaves a lot to be desired. But I think it says there has to be bypass valves unless you have an instant water heater.
So again, do you have a 6 gallon waterheater or an instant waterheater?
What manual are you saying says the heater is locked out? I’m still at a total loss on that comment.
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Old 06-11-2024, 08:53 AM   #9
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It is a 6 gal heater. The Dometic manual referes to the lockout conditions without specifying what they are.
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Old Yesterday, 05:06 PM   #10
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Well i did some digging and found what I believe is design flaw. there is no cut off valve so the water flow least resistance is thru the cross over and hence why the tank does not fill. In the attached picture the cold water input has a cross over to the hot water output so unless the crossover is not shut off the water would flow thru the crossover when hot water faucet is turned on. I emailed Jayco service and I'll see what they say.
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IMG_20240611_185814165.jpg  
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Old Yesterday, 05:07 PM   #11
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By the way the picture is upside down.
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Old Yesterday, 05:34 PM   #12
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That is probably a 2 valve bypass. If you turn both handles the water will flow in and out of the tank. The current position is possibly for bypassing and winterizing. The 2 valve system is perfectly normal.

https://www.google.com/search?q=2+va...kCVfjO4,st:125
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Old Yesterday, 05:55 PM   #13
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I think Grumpy is correct. The valves are turned inline with the pipes and you are in bypass. Turn the valves(both of them) toward the water heater.
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