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Old 05-27-2020, 07:32 PM   #1
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where is the HWH valve?

Hi, we have a 2019 sunseeker 2500. Last fall the dealer put in a new thermostat for the hot water heater and winterized it. We are getting it ready to take out and when we turn on the water pump, water flows out the red hose under the unit. We know where the cold water valve is but where is the hot water one? I suspect we need to shut that. You would think it would be by the cold water one.

Thank you. This type of stuff is a bit frustrating for me.
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Old 05-27-2020, 07:38 PM   #2
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Originally Posted by npinkston View Post
Hi, we have a 2019 sunseeker 2500. Last fall the dealer put in a new thermostat for the hot water heater and winterized it. We are getting it ready to take out and when we turn on the water pump, water flows out the red hose under the unit. We know where the cold water valve is but where is the hot water one? I suspect we need to shut that. You would think it would be by the cold water one.

Thank you. This type of stuff is a bit frustrating for me.
I don't know the exact configuration of your floor plan, but on my 2020 Sunseeker, there is only one red hose directed under the camper. It is a low point drain. In my case, it had no shut off valve, only a cap screwed on to the end of it. (I have since added a valve for convenience). Does the red hose you speak of have a threaded fitting on it’s end, and no cap? Perhaps the winterizing dealer left the cap off and didn’t tell you where it is. Where is this hose located on your camper?

If the red tube is just open ended, I guess you’ll need to follow the hose back, looking for a valve.
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Old 05-27-2020, 07:53 PM   #3
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Yes! you are just the best. I was so frustrated. Found the cap in the hot water heater area previously and wondered what it was for. Hooray, now it is working. Think I'll get a back up cap in case something happens to that one. I don't have the skill set (yet) to change to a valve at this time though I think that is an excellent idea. Who knows, I may in the future.

This site is so helpful. My husband has Parkinson's so little details escape him now and I'm just learning as I go from kind hearted people that share their knowledge.

Have a lovely day!
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Old 05-27-2020, 08:16 PM   #4
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Well, it’s too bad the dealer didn’t explain where the cap was and that it should be reinstalled in the spring. Anyway, I’m glad it was an easy fix.

Below is a photo of the valve I added to my red drain pipe, just before the pipe exits to the underside of the Sunseeker, in the water pump compartment. Maybe even if you don’t have the tools or skill, someone could install such a valve for you. Then you would not need to crawl under the motorhome to deal with the cap.
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Old 05-27-2020, 09:24 PM   #5
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That is certainly something to consider. The valve is much easier than crawling underneath the motorhome. Thank you again.
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Old 05-28-2020, 03:26 PM   #6
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When the dealer winterized, did they use antifreeze in the lines? If they did, they may have turned a set of valves at the water heater to eliminate filling the hot water heater with antifreeze. Normally, the hot water heater holds about 7 gallons of water. When winterizing, the hot water heater is drained by removing anode rod at the base of the water heater. This is accessed through the door on the outside at the water heater.

On the opposite side, the interior side, is a set of 3 bi-pass valves that have to be reversed to again allow water into the water heater. On our 2500TS. those valves were located below the kitchen sink cabinet, under the cabinet floor, and accessible by a small knock out panel. That panel is concealed by the sink base cabinet door. That panel can be carefully removed without damage by using a crochet hook or a nut pick. The dealer may have already dislodged it. Yes, it is a bear to get to. But, if the hot water heater is turned on without being full, it can be damaged. For the water heater to fill, there should be 3 valves visible. The pipes should be in a "H" configuration. The top and bottom valves should have knob in line with the pipes. The center valve in the "cross bar" of the "H" should have the knob at right angles to the pipe. I'm pretty sure, someone on this forum has a picture to share with you, but YouTube to the rescue!



The 2500 is a great choice and there are things to be learned. We all have a learning curve. You are to be commended for taking on the additional responsibilities for the two of you to enjoy camping.
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Old 05-28-2020, 03:43 PM   #7
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When the dealer winterized, did they use antifreeze in the lines? If they did, they may have turned a set of valves at the water heater to eliminate filling the hot water heater with antifreeze. Normally, the hot water heater holds about 7 gallons of water. When winterizing, the hot water heater is drained by removing anode rod at the base of the water heater. This is accessed through the door on the outside at the water heater.

On the opposite side, the interior side, is a set of 3 bi-pass valves that have to be reversed to again allow water into the water heater. On our 2500TS. those valves were located below the kitchen sink cabinet, under the cabinet floor, and accessible by a small knock out panel. That panel is concealed by the sink base cabinet door. That panel can be carefully removed without damage by using a crochet hook or a nut pick. The dealer may have already dislodged it. Yes, it is a bear to get to. But, if the hot water heater is turned on without being full, it can be damaged. For the water heater to fill, there should be 3 valves visible. The pipes should be in a "H" configuration. The top and bottom valves should have knob in line with the pipes. The center valve in the "cross bar" of the "H" should have the knob at right angles to the pipe. I'm pretty sure, someone on this forum has a picture to share with you, but YouTube to the rescue!



The 2500 is a great choice and there are things to be learned. We all have a learning curve. You are to be commended for taking on the additional responsibilities for the two of you to enjoy camping.
OP's problem is solved. See post #3.
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Old 05-28-2020, 03:56 PM   #8
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OP's problem is solved. See post #3.
Granted, the original problem was solved, but if the dealer turned the WH bypass valves, the OP has a bigger problem. That was a point I was making. If the OP is new to the game, she needs to be aware of the bypass valves.
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Old 05-28-2020, 09:54 PM   #9
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Thank you for the additional info. They didnít use antifreeze in the lines only in the pea traps and we didnít turn on the hot water heater so weíre good there 😊. Iím glad to know how to access the valves as Iím sure that knowledge will come in handy later.
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Old 05-31-2020, 01:02 PM   #10
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Well, itís too bad the dealer didnít explain where the cap was and that it should be reinstalled in the spring. Anyway, Iím glad it was an easy fix.

Below is a photo of the valve I added to my red drain pipe, just before the pipe exits to the underside of the Sunseeker, in the water pump compartment. Maybe even if you donít have the tools or skill, someone could install such a valve for you. Then you would not need to crawl under the motorhome to deal with the cap.
Excellent idea! Please advise where you got this valve and the clamps.
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