Originally Posted by Higgy
sounds to me like the gas valve as you have changed the thermocouple. I have seen thermocouples that were broken from new, though not very often. Apart from stripping the gas valve and cleaning/checking it then replacement is the next step but if you cant find one...
Found this on another site. Not sure if its helpful.
Thanks so much. That was REALLY helpful. I couldn't find the right part no matter how far I searched. That led me to the right one.
I called them and they wouldn't sell me what i needed - they were wholesale only. They referred me to a local dealer, who just happens to be a crook.....LOL. I went in to see what he could do and he wasn't even interested - until I gave him an actual part number (from your link above). He was willing to order it, but it came to $455.00. Holy crap!. That's about double what the trailer is worth! I can buy a brand new complete modern furnace for less money. And of course the catalytic heater is cheaper.
Not sure what we're going to do yet. Sweaters and a sleeping bag are not the answer. At times we hunt in single digit temps. Sleeping is fine, but eating in 10 F temps is not conducive to good digestion. Maybe the kids and all will have to stay in the new Jayco...