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HVAC, Air Conditioners, Aqua Hot, Primus, Webasto, Chassis Heaters, Furnaces and Water Heaters Questions and information about the wide variety of Heating and Air Conditioning as well as Water Heater systems available are discussed here.

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  #31  
Old 03-24-2019
badandy badandy is offline
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Doug, Gardner, all, I have finally conquered this today! In the end there were two problems - one dead circuit breaker in the front/lower panel, and after many, many hours of taking things apart and toning out wiring, I decided to take the thermostat off the wall and found this:



I just yelled Martha Focker and went in the house to cry.
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  #32  
Old 03-24-2019
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That's why you do the KiSS method; Do the easy stuff first!!!
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  #33  
Old 03-24-2019
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Originally Posted by sailor7cs View Post
That's why you do the KiSS method; Do the easy stuff first!!!
AMEN BROTHER!!!!!!! How many times have we done this and seen others do it? For some reason we want to make it difficult
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  #34  
Old 03-24-2019
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I did KISS last year, when I disconnected that wire during troubleshooting and didn't put it back. Ugh!
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  #35  
Old 03-24-2019
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Quote:
Originally Posted by badandy View Post
Doug, Gardner, all, I have finally conquered this today! In the end there were two problems - one dead circuit breaker in the front/lower panel, and after many, many hours of taking things apart and toning out wiring, I decided to take the thermostat off the wall and found this:



I just yelled Martha Focker and went in the house to cry.
That would explain the blowers running or not, but the Winter/summer valves are not (on mine) controlled by the thermostat. They are active when the ignition is on. Either the Winter or Summer valve is active when the ignition is on, always one, never both. Or was that fixed by the bad breaker?
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  #36  
Old 03-24-2019
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That would explain the blowers running or not, but the Winter/summer valves are not (on mine) controlled by the thermostat. They are active when the ignition is on. Either the Winter or Summer valve is active when the ignition is on, always one, never both. Or was that fixed by the bad breaker?
The summer/winter stuff with regard to pump and valve wiring started working when I fixed the breaker. The chassis heaters just wouldn't blow. For the record, your schematic has way more going on that my old 83 as far as relays and stuff. The redrawn FC stuff is much closer, just the breakers are scattered around a bit differently. I have no original documents for my bus, but I did find a layout of the breakers on a PT that matches perfectly.
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  #37  
Old 03-24-2019
badandy badandy is offline
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I have a circulating pump running in a pail of antifreeze to clean these lines/exchangers out now. It would be nice to add a little heat, but man there was a lot of mud in them. I had to come in to warm up. I'm covered head to toe in mud and grease from running the new hoses.
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  #38  
Old 03-24-2019
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Andy,
Without reasonable schematics it is an up hill battle. Glad you could at least get some ideas from the various doc. I guess the earlier PT's were closer to the FC's than later on. There must be someone who has some diagrams for your year???
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  #39  
Old 03-24-2019
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Andy:


Glad to see you got the problem fixed without having to decode Bluebird habit of changing wire colors, buying some unobtanium part, purchasing or fabricating some sort of tool and/or removing 5 or 6 additional parts before you get to the problem.


Cheers
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  #40  
Old 03-24-2019
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Quote:
Originally Posted by gcyeaw View Post
Andy,
Without reasonable schematics it is an up hill battle. Glad you could at least get some ideas from the various doc. I guess the earlier PT's were closer to the FC's than later on. There must be someone who has some diagrams for your year???
When I purchased the drawings years ago direct from Fort Valley,
they included both FC & PT for 1988, many electrical were very similar
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