Community Forums

Old-Biscuit · 06-26-2021, 11:09 AM

Look at picture OP posted...NO Engine Coolant Ports/Lines
His model is electric water heater.

astrnmrtom · 06-26-2021, 05:32 PM

I did look at the picture, and am fully aware of what a front heat exchanger model looks like because I have one in my system. Since the OP didn't know what he had, I included information that may help him figure out how his system is plumbed, and that information included the possibility of a tank with a rear heat exchanger. Those ports wouldn't be visible in the picture. A quote from the product description of a rear heat exchanger model: "Heat exchanger ports are located at the "Rear", opposite the side as the electrical box and cold in/hot out ports."

To figure out exactly what he's dealing with will take some sleuthing because there's so many different ways these things can be installed and plumbed. It could certainly be an user added feature, but I find it odd that a second tank would be plumbed in just for electric or additional capacity, especially a Seaward tank, since there's existing RV hot water heaters that have both electric and propane, and a swap out of the original propane tank or the addition of an electric element "kit" would have been a whole lot easier than wiring and plumbing a second tank. That and the fact the manufacturer offered a different coach model that lists "demand" hot water, lends me to believe this is more than a simple added tank. It's just my gut feeling, but hey, sure wouldn't be the first time I've been wrong - we're all just kinda' winging it here since we can't see the system first hand. Knowing what to look for will certainly help.

The good news is the OP had made progress, and this is all info that we hope can help him figure out his system. Took me a while to get to know my system and I appreciated the help of other Rvers to get me there. With the help of this forum, he'll figure his system out too, and maybe some day will pass that knowledge along to the next person.

Old-Biscuit · 06-26-2021, 08:36 PM

OP has a S600 Model.....see label in picture

IF it had engine coolant ports they would be on backside bottom between electric cover

Just trying to keep information pertaining to OPs model

DarkVader · 06-26-2021, 08:44 PM

Hi all, the small pump was the DESERT SUPERCOOLER, and it is indeed pumping water, presumaby to the engine. Not sure where exactly as I didn't see the engine actually being sprayed with water but I'll look some more tomorrow. But everything works! As for it being a hear exchanger as well..not likely. But woulda been neat if it was.

Dumb question but can I open the engine bay (open the bed up and see the engine) while it's running? Seems strange but I'm guessing there's nothing wrong with it?