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M380 (Unique Issues) If you have a unique issue with your M380 model coach and it can't be answered in one of the other forums here, then this is where you can list it.....list your M380 Parts here too.

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  #21  
Old 03-19-2020
Dennis Dennis is offline
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My mechanic just called me to say they have the dash completely apart and still can't find the engine driven A/C / heater blower motor. The motor I saw inside a metal box under a piece of plywood turned out to be the windshield wiper motor. Before he starts tracing wires at $130 an hour are there any more ideas on where that blower motor could be? Thanks as always.
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  #22  
Old 03-19-2020
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DFB052686 DFB052686 is offline
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Are you vents in the dash? Generally on buses the blower is on the curbside near the door. Where is the air intake filter if you have a cabin filter it should be near the fan itself in theory...

I’m not sure how far BB went to make the m series more car like and less bus like.
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-Dennis (direct email please! dennis@wanderlodgeowner.com)
Hesperia, California

1987 FC31 “A Rare Bird”
(300HP 3208TA/ZF)

1983 FC35SB
(225HP 3208T/MT643/Jacobs Retarder/Cruisair

Towables:
2007 Grand Cherokee CRD
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  #23  
Old 03-19-2020
Dennis Dennis is offline
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I did see that filter and will tell them to look there. Thanks
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  #24  
Old 03-19-2020
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Dc2x4drvr Dc2x4drvr is offline
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Yes the fan is inside the box, close to the filters, let us know if the tech can get to fan, going to be a tough job. As I said, BB built the 380 around the HBAC box.
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  #25  
Old 03-19-2020
Dennis Dennis is offline
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Thanks Lance, I'll let you know if they find it.

Dennis
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  #26  
Old 03-19-2020
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lucaswillemse lucaswillemse is offline
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Default Fan Motor

I had a similar problem with our WB 42 The system is different than yours but the motor speed control is probably the same. I found that there was a corroded overheated connection on the speed control resistor mount on the air box housing. See the attached picture. I replaced the connector and cleaned the terminal and the unit has worked fine since then. Hopefully you can get to these connections without taking too much apart. On the WB it was behind the passenger footrest panel that just pulled out.
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  #27  
Old 03-20-2020
hexspeed hexspeed is offline
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Dennis:

Attached is the heater Service Parts Catalog for the Blue Bird transit buses that I believe were the basis for the M380 chassis.

SERVICE PARTS CATALOG - FRONT HEATER
M4RE_370_Heaters.pdf

PageSet Number 23 shows the breakdown of the center HVAC "box" with the motor shown -- it matches Lance's description of where the motor is. Not sure how much it helps in figuring out how to access the area, but it at least confirms the motor is in there. Google "Kysor 411369" and you can see pics of the fan/motor assembly and find replacements.

PageSet Number 24 shows the heater panel switches and wiring diagrams. Not very useful in seeing how it fits into the rest of the M380 electrical system, but shows connectors to the motor.

Hope this is of some help in your quest.

Jim
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  #28  
Old 03-24-2020
Dennis Dennis is offline
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Default M380 cockpit A/C and heater blower fan motor

My mechanic just emailed me to say they found the cockpit air conditioner/ heater blower motor and that it was located under and in the center area of the dashboard and that the entire dashboard has to come off to get access to it. The original motor I saw that was in the same area and under a piece of plywood turned out to be the windshield wiper motor. Here as some photos of the blower motor and windshield wiper motor[

ATTACH]66994[/ATTACH]

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Name:	TORRES BLOWER MOTOR 009.JPG
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ID:	66997:
Attached Thumbnails
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Name:	TORRES BLOWER MOTOR 002.JPG
Views:	34
Size:	122.9 KB
ID:	66994  
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  #29  
Old 03-24-2020
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Just one man's opinion, but there is no way I would allow these guys to tear into that and not watch every second of the "operation." Not sure I would do it even if I were there Turn on the generator and the roof A/C and forget it. You probably have spent enough money already to power that genny to run those A/Cs for a couple of years of trips.
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  #30  
Old 03-24-2020
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DFB052686 DFB052686 is offline
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Quote:
Originally Posted by isp2952 View Post
Just one man's opinion, but there is no way I would allow these guys to tear into that and not watch every second of the "operation." Not sure I would do it even if I were there Turn on the generator and the roof A/C and forget it. You probably have spent enough money already to power that genny to run those A/Cs for a couple of years of trips.
I mostly agree with you. And if I were me I would be doing the work myself due to learned distrust(unfortunately).

But I can see the thought process for getting it fixed regardless of the cost vs gen run time (...etc) equation, I didn’t fix the dash a/c on my FC, because it’s “not a good system”, and I have regretted it since. Im going to try to make it whole again this time around for that simple reason.

Might as well keep these birds as original and functional as possible... if I wanted simple I would use the truck camper.
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-Dennis (direct email please! dennis@wanderlodgeowner.com)
Hesperia, California

1987 FC31 “A Rare Bird”
(300HP 3208TA/ZF)

1983 FC35SB
(225HP 3208T/MT643/Jacobs Retarder/Cruisair

Towables:
2007 Grand Cherokee CRD
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