Ben93warrior Posted October 18, 2022 Share Posted October 18, 2022 Hi, I am trying to find a replacement gas valve for the water water heater in my recently purchased 1993 winnebago warrior. It will be a direct replacement for the Jade 91601 gas valve. Apparently the Atwood 91602 is the replacement, however, it has been discontinued and is very hard/expensive to find. RobertShaw took over production of these valves and I see several possible replacements, but not sure which one to go with. The one I want has blue knobs and is a guarantee plug & play (impossible to find/discontinued). I see several possible replacements from robertshaw with red knobs, but its hard to tell from pictures/vague information if this will plug & play replace the original Jade valve assembly. Anyone have experience or advice as to the most suitable replacement? Thanks, Ben+ Quote Link to comment Share on other sites More sharing options...
Ctgriffi Posted October 18, 2022 Share Posted October 18, 2022 (edited) I went through the same thing a year or two ago on my 91 Warrior. Old valve stopped working right; wouldn’t shut off automatically anymore, and scorched the fiberglass surrounding it, before I noticed! I found a replacement from rvpartscountry.com at the time, which has worked well (note: quite difficult to remove the old one!). No idea if they have more in stock. Mine looks like the first photo you posted, and here’s the order description: 91602 Atwood 91602 Robertshaw Thermostat with a Three Eight Inch NPT inlet and with a Three Eight NPT Outlet Water Heater Edited October 18, 2022 by Ctgriffi Quote Link to comment Share on other sites More sharing options...
linda s Posted October 18, 2022 Share Posted October 18, 2022 This looks like the one Atwood Water Heater Gas Control Valve / Thermostat 91602 - $116.3.. (adventurerv.net) This has the right part number but different inlet size? don't know if it's a mistake or not Linda S Quote Link to comment Share on other sites More sharing options...
Ben93warrior Posted October 18, 2022 Author Share Posted October 18, 2022 It's out of stock everywhere. I checked the sites recommended and no luck. My main concern with the replacement is the part that screws in to the water tank with the copper fitting (the back part) the length and diameter specifically. Fittings and adapters can be purchased for any other part, but if the copper (inlet I guess) is the wrong length or the diameter is off I would need to return. I found one on EBAY new old stock ending tomorrow, but someone bid it all the way up to $150 plus 23 shipping. I think I can get a red knob robertshaw to work, but was just curios if anyone had similar experiences. THANK YOU Ctgriffi & linda s good to be part of the community just joined Quote Link to comment Share on other sites More sharing options...
linda s Posted October 18, 2022 Share Posted October 18, 2022 Camping world has it listed. Did you check there? Valve/T-Stat, LP Gas, Kit, Robert Shaw, w/ 3/8" Inlet & Outlet, Pilot Series, Water Heater | Camping World Linda Quote Link to comment Share on other sites More sharing options...
Ben93warrior Posted October 18, 2022 Author Share Posted October 18, 2022 I just called RobertShaw technical support, the gentleman told me that the red knob valve controls only work with natural gas not propane. He referred me to the RobertShaw 110-503 which seems to be just as hard to find as the 91602 because it's discontinued. I have to believe that there is a valid replacement out there that will work as far too many people would need a valve for this application. Back to the drawing board. I will keep the community posted on my findings. Quote Link to comment Share on other sites More sharing options...
linda s Posted October 18, 2022 Share Posted October 18, 2022 That information directly contradicts Robertshaw's own website and the labels on this new old stock on eBay. Robertshaw 110-508 Liquid Propane Water Heater Valve | eBay Warning tag stuck right too it. Recreational vehicles can only use propane gas appliances Linda S Quote Link to comment Share on other sites More sharing options...
Ben93warrior Posted October 18, 2022 Author Share Posted October 18, 2022 Good find Linda that looks like it would work. I went with an MC Enterprises 161111MC Water Heater Valve for Suburban Appliances. There was one left on Amazon for $142. Make sure you get documentation your valve is for LP use not natural gas & correct inlet/outlet sizes. I asked my plumber about what the difference was he said "the difference is the pressure at which they operate it would be very dangerous to interchange them." The MC enterprise valve seems to be somewhat readily available and an appropriate replacement for the unicorn 91602. This website has 4 left if anyone needs one. https://parts.unitedrv.com/products/water-heater-pilot-gas-valve-for-suburban-161111mc Quote Link to comment Share on other sites More sharing options...
Ctgriffi Posted October 18, 2022 Share Posted October 18, 2022 Glad you found a workable solution and hope the repair goes smoothly. Many/most of the WH units that used the original style valve are probably long gone to the junkyard. But some of us, me included, don't want to let go! Quote Link to comment Share on other sites More sharing options...
Scott iv Posted October 18, 2022 Share Posted October 18, 2022 Your plumber friend is right; definitely not interchangeable between natural gas and propane. Different jet sizes. Very similar to carburetor jets on a motorcycle or car if you are familiar. My house uses propane and I have changed the jet fittings on appliances to run on propane here. My stove through trial and error and was startling when I did not have the correct jet size; Boom! Anyway. Quote Link to comment Share on other sites More sharing options...
Maineah Posted October 18, 2022 Share Posted October 18, 2022 8 hours ago, Ben93warrior said: I just called RobertShaw technical support, the gentleman told me that the red knob valve controls only work with natural gas not propane. He referred me to the RobertShaw 110-503 which seems to be just as hard to find as the 91602 because it's discontinued. I have to believe that there is a valid replacement out there that will work as far too many people would need a valve for this application. Back to the drawing board. I will keep the community posted on my findings. One in my 1990 camper has a red knob works fine Quote Link to comment Share on other sites More sharing options...
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