Weird hot water (lack of) issue, please help!

Question

Hello,

I am new and looking for some help. I have only had my trailer for about 9 months and I winterized it myself. I dewinterized it and now I am having a problem. The hot water tank is working, when I pull the pressure relief valve hot water comes spewing out. Then I go to turn on the hot water in my trailer and it gets warm for a second and then cold again....I am stumped. I know there is probably a valve somewhere I forgot to turn but I can't find it? Suggestions?

ndrorder · Answer

Does your trailer have valves to bypass the water heater when winterizing. Sounds like all 3 valves are open when the bypass valve should be closed.

rbrand · Answer

ndrorder wrote:Does your trailer have valves to bypass the water heater when winterizing. Sounds like all 3 valves are open when the bypass valve should be closed.I concur.

taddyport · Answer

I had the exact same thing last year and that's exactly what it was, check the bypass valve, it worked for me.

harley4275 · Answer

If you have the 3 valves on the back of your heater , then they all are vertical or all are horizontal.   Your problem is the middle one that connecteds the red and blue pipes is open..close it.

old-biscuit · Answer

Some water heaters have three valves (cold in--open, hot out--open & bypass---closed)

Some have 2 valves.....cold --open bypass closed (check valve in hot out)
Some have 2 '3-way' valves....cold/bypass & a hot/bypass (turn both handles so they are parallel with cold/hot lines)

Some have 1 '3-way'....cold/bypass w/check valve in hot out (turn handle so it is parallel with cold in

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Weird hot water (lack of) issue, please help!

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