I have an electrically savy friend running into intermittent 12-volt issues as he's making his way through Wyoming and Montana, and eventually to our place here in Spokane, WA, in his 36' 98 U295. At one time or another it has affected his Bose system, leveling control pad, and Allison control pad. When he shuts everything down, including ignition key, and then restarts, everything returns to normal until the next thing shows up.
Wiring diagrams might help him with trouble shooting. I've forwarded to him a link to the Bose diagram on Barry's site, but am unable to find any link online to a whole-coach diagram. Can anyone provide such a link for me to send - or can anyone who has solved a similar problem give me suggestions to pass along?
Thanks in advance. Bob
Bob, I highly recommend contacting FOT parts and requesting a owners manual for your coach, you will need the build number as I recall, they can print, bind and mail it to you, it has all the electrical wiring diagrams. At least mine does, it is complete, nice source of info. Think cost about $35.00, a bargin.
Cheers
Thanks, Dave. He bought his 98 FT last summer at FOT, without electrical documentation. He might not know about the availability you are describing. I'm sending this on.
Still would like to hear, if possible, from anyone who may have themselves faced and solved intermittent 12 volt problems involving several on-board systems in the same time-frame.
Bob
Sounds like a bad ground connection.
Check the main ground by the engine area.
I second Barry about likely ground problems. Check also the ground bus behind the dash, grounds/ connections behind the front breaker panel (stair well). Also possible - bad or flakey solenoid controlled by ignition switch, or possible bad master battery shutoff switch in stair well.
Thanks Dave. Update: Friend started believing that his TV was messing with his Bose. So he pulled tv back in camp by Yellowstone, stripped all Bose connections, put tv back. No recurrent 12-volt problems anywhere else since for the last 3 days.
We'll do a deeper check of 12-volt possibilities you mention when he gets here this weekend. Thanks again for pointing us to specific places to check.
Bob