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Old 05-14-2012, 03:49 PM   #1
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Coleman Mach Air conditioner Capacitor and wiring

Hello,

I have a Coleman Mach air conditioner on my 1998 Fleetwood Prowler. I bought the camper from the second owner and he explained the original owner told him the AC unit did not work. I tore into it and it seems that someone took the capacitors out of the unit and never replaced them. I would like to identify the exact capacitors I need and hopefully an expplanation of the wiring. I found the exact model number of the AC unit is 733306664 and that there are 5 wires that are not connected to anything where the Capacitors should be. The wires are as follows
2 Brown wires that are connected directly to the 1/3 hp motor
1 yellow wire that comes from the Control panel
red wire that runs to the compressor
1 white wire that runs to the compressor.

The diagram on the panel seems to show two capacitors but I spoke to a fellow who sells the capacitors on ebay and he claims that this model actually uses 3 capacitors
Fan Capacitor Part # 1499-5461
Start Capacitor 1497-1081
Run Capacitor 1499-5561

I would appreciate any help with this
Thanks TT
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Old 05-14-2012, 08:17 PM   #2
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OKAY I spoke to someone at what I believe is the Coleman factory, he explained that the Model number is 7333D6664 and it is a 13,500 BTU unit. He also explained that there would be two capacitors and best yet he sold them to me for a better price than I can find anywhere else. I also found a much more readable wiring diagram at the RVtechlibrary.com It will take a week or so to get the capacitors but hopefully I will be able to get the AC up and running
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Old 05-18-2012, 02:09 PM   #3
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Are you the same treetop from R/C Groups?
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Old 05-20-2012, 05:30 AM   #4
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I am not on any RC forums, maybe another treetop out there
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Old 05-20-2012, 05:37 AM   #5
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I recieved my new capacitors the other day in the mail. I have not had a chance to look at them closely yet. My dilemna is that since the capacitors were missing and I am just not positive how to connect the wires. The Fan capacitor should be easy since it only has the two wires, the white striped brown and a solid brown wire one to each side of that cap. But the start cap has three wires to connect up and only two sides to connect to? I will research further but if anyone can help I would appreciate it

Thanks
TT
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Old 06-25-2012, 08:45 PM   #6
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I finally had some time and installed the Capacitors. The fan worked fine but it did not cool at all. I was not sure but it seems that the compressor was not doing anything I called the Airxcel service line and the man (these guys are so very helpful) on the other line helped me troubleshoot it. I found that the fan / AC switch is bad and was not supplying the compressor with any voltage. I jumpered it temporarally and I found the AC cooled air temperature was almost 20 degrees less thank the air temp. I think I am set to go I just need to order the part. The tech told me that this is a very common part that fails?
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Old 06-25-2012, 08:51 PM   #7
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Good job treetop
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Old 06-25-2012, 09:15 PM   #8
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I am having a hard time understanding what this switch actually does It controls the fan speed but also powers the compressor. There is a switch on the other side that is actually the thermastat It seems the only place that carrys the needed swicth will be Aitxcel
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