Designer 35RLTS and Jayco Talk...Thanks Frank!!

Which valve are you having to replace? The mixing valve and the by-pass valve are 2 different things. The by-pass valve is the valve you turn to winterize the camper and is on the bottom of the water heater by the access door. The mixing valve is near the top of the water heater and has no adjutment. Our mixing valve went out after about 1 year of ownership, so warranty covered it. Talking to our dealer, this was a common occurance on this type of heater.