Does anyone know how to test the rheostat heater control for dashboard heat? Or what/where the replacement part is? I have replaced the thermotion blending valve and have heat flowing into the valve, but no heat out to the exchanger so I suspect it's the rheostat.
99 U320
I had our 2002 U320 at MOT for lack of heat. As I recall, the mechanic got underneath in front of the step to watch the electric valve and he had me move the temperature dial. I remember that the water valve moved very very slowly so you need to give it time to see it move.
Thanks for the idea, but the thermotion valve has no external parts to view only a multi connector electric plug and four hose connections. Being it's a 25 year old coach with who knows how many modifications have been made! Even the dashboard air was rewired to run continuously. But that's why I love old Foretravels!
"give it time"
Didn't think our dash heat worked until it was left on for about 20 min or so, once the line running forward is warm
up it really works well.
After flushing the exchanger, found the potentiameter was bad. No parts store offered anything close. Foretravel parts informed me that it's obsolete and a workaround new system would cost over $300. Found on Amazon a manual brass valve for under $30. As needing heat is the exception rather than a necessity, I can open the valve in the genie compartment!
You could probably make this work with a little experimentation.
https://www.zoro.com/maradyne-heater-switch-kit-only-5670014/i/G8053641/?utm_source=google&utm_medium=surfaces&utm_campaign=shopping%20feed&utm_content=free%20google%20shopping%20clicks&campaignid=19979164495&productid=G8053641&v=&gad_source=1&acs_info=ZmluYWxfdXJsOiAiaHR0cHM6Ly93d3cuem9yby5jb20vbWFyYWR5bmUtaGVhdGVyLXN3aXRjaC1raXQtb25seS01NjcwMDE0L2kvRzgwNTM2NDEvIgo&gclid=CjwKCAiA5L2tBhBTEiwAdSxJX96iT2-FLR3h0y4IPAWzmaJKvW_cafwQUDhwQjbfly8_H8IAKpcBDRoCfmsQAvD_BwE&gclsrc=aw.ds
On my trip to Q this year, my dash heat also didn't work. This is the first time since I've have the coach that it's had this issue, so I've got something to look into there.
If you're looking for parts for the dash system, call SGM who build that system that FT used. Looks like their website is down, but their phone number still works: 440-255-1190