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Old 05-27-2018, 03:58 PM   #1
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Hot water heater Catalina Legacy 263 RLS

Can the temperature be adjusted on the hot water heater? Taking a shower it starts off comfortable for about a minute the gets luke warm then cold. Not liking cold showers. Any suggestions? Manual says temp is set at factory.
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Old 05-27-2018, 04:18 PM   #2
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Most likely your water heater by-pass valve is open, you need to close it.
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Old 05-27-2018, 05:02 PM   #3
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That is what I thought to, but valves are open.
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Old 05-27-2018, 05:09 PM   #4
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Tthe middle valve needs to be closed. look at the picture. Check your shower valves inside and out. The valves must be closed not just the one oh the sprayer handle.
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Old 05-27-2018, 05:16 PM   #5
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Originally Posted by pastorlarry View Post
That is what I thought to, but valves are open.
You want both valves connected to hot water heater open BUT the one that connects the two lines CLOSED.

What you are describing is a classic case of the bypass line being open.


One thing worth noting, these RV water heaters are small. 6 gallons on average. They don't allow for much running of the shower to let the water get hot. What I do on mine is turn on both Electric and Propane (when hooked to shore power) for quicker recovery time.

As for adjusting temp, both Gas and Electric use preset temperature settings. Down around 120-130 degrees. If you can't get any HOT water when on electric, try gas. If that works better, perhaps the electric thermostat needs to be replaced. It is a button like device that sits on the tank and has wire connections just like most spade lug switches.

(close that valve first before going any farther )
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Old 05-27-2018, 05:25 PM   #6
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Also, if you have an outside shower, make sure both faucets are off. If they are on, but the shower head button has flow turned off, you can get bypass flow between the two faucets just like having your water heater bypass open.
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Old 05-27-2018, 05:56 PM   #7
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You want both valves connected to hot water heater open BUT the one that connects the two lines CLOSED.



What you are describing is a classic case of the bypass line being open.





One thing worth noting, these RV water heaters are small. 6 gallons on average. They don't allow for much running of the shower to let the water get hot. What I do on mine is turn on both Electric and Propane (when hooked to shore power) for quicker recovery time.



As for adjusting temp, both Gas and Electric use preset temperature settings. Down around 120-130 degrees. If you can't get any HOT water when on electric, try gas. If that works better, perhaps the electric thermostat needs to be replaced. It is a button like device that sits on the tank and has wire connections just like most spade lug switches.



(close that valve first before going any farther )


Thanks to all. I went back and looked and closed the bypass valve. New to RV’ing and still learning how all the systems work
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Old 05-27-2018, 08:09 PM   #8
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Tthe middle valve needs to be closed. look at the picture. Check your shower valves inside and out. The valves must be closed not just the one oh the sprayer handle.


Thanks
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Old 05-27-2018, 11:10 PM   #9
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Thanks to all. I went back and looked and closed the bypass valve. New to RV’ing and still learning how all the systems work
Just remember, every single person here, no matter how long and how smart, was a first timer in the beginning.

Glad to be of help.
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