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Author Topic: Coleman Mach 15 Compressor Replacement  (Read 349 times)

tlwalker

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Coleman Mach 15 Compressor Replacement
« on: July 09, 2018, 12:43:53 PM »
We have a 2013 Loredo 329RE with a Coleman Mach 15 A/C unit (old model# 48254C866, replaced by 48204C866). The unit is blowing air, but not cooling. I had a local A/C guy that works on campers come by and look at it. He said the compressor is getting voltage, but not coming on. He is willing to replace the compressor if I can source the part for him. I contacted my local RV dealer and he stated that the compressor on that unit was not replaceable and that I needed to buy a whole new unit. I'm thinking the guy just wants to sell me a new unit. Does anyone know what the part number is and where I can get one?

darsben

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Re: Coleman Mach 15 Compressor Replacement
« Reply #1 on: July 09, 2018, 01:38:18 PM »
usually the compressors are not replaceable.
Did he check the starting capacitor?
You can replace the unit yourself the hardest part is getting the unit on the roof
Look on ebay
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2053587.m570.l1313.TR3.TRC2.A0.H0.XRV+15000+btu+air+conditioner.TRS0&_nkw=RV+15000+btu+air+conditioner&_sacat=0
or call PPL
1990 Fleetwood Southwind on P30 chassis located in
Central NY in summer and beautiful Casa Grande AZ in winter

catblaster

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Re: Coleman Mach 15 Compressor Replacement
« Reply #2 on: July 09, 2018, 01:51:03 PM »
That seems odd, I can buy compressors for refrigerators, freezers, ice machines and even water coolers. Something should cross match. I mismatched a used 3 1/2 ton single phase onto an ice maker that was born with a 3 ton 3 phase...
Will and Jane
95 Winnebago Luxor

youracman

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  • Posts: 146
Re: Coleman Mach 15 Compressor Replacement
« Reply #3 on: July 09, 2018, 03:39:15 PM »
It's kinda the old "gotcha" game, tl.  When you look at the "drive out" costs: the new compressor + installation labor/materials; you may be bumping up against the cost of a new unit...... and you will have a compressor with  perhaps a pretty "short" warranty; a 5-yr-old fan; 5-yr-old capacitors; a 5-yr-old contactor ..... etc.  Now if you can do the work yourself....another story.

I'd get a 2nd opinion ........ from a refrigeration tech.  I have seen compressors which were "getting voltage" but had a bad contactor .... (that had high resistance contacts.)  Most all techs always obtain continuity/resistance readings for both the start and run windings + a resistance-to-ground check (all done in just a minute or two) before declaring a compressor DOA. (Maybe your guy did that.)   Doubt the compressor is locked up ..... you can tell that from 10 ft away.  Just my $.02
 
Several experienced A/C guys on  the forum (someone mentioned the start/run cap) hopefully more will chime in.

BTW-PPL Houston is another good source for a new Coleman Mach 15 if you go that route.

Best....... ed s
Ed Sievers/Denver, CO
07 WGO Outlook 31C
Toad: 16 Soul with 6spd DIY
"Be the person you needed when you were younger."

catblaster

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Re: Coleman Mach 15 Compressor Replacement
« Reply #4 on: July 10, 2018, 06:57:38 AM »
get a second opinion, among the things already suggested it could be the starting relay or "klickson",
Will and Jane
95 Winnebago Luxor

solarman

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Re: Coleman Mach 15 Compressor Replacement
« Reply #5 on: July 10, 2018, 07:03:48 AM »
That seems odd, I can buy compressors for refrigerators, freezers, ice machines and even water coolers. Something should cross match. I mismatched a used 3 1/2 ton single phase onto an ice maker that was born with a 3 ton 3 phase...

anything can be repaired, the issue is always cost, with labor rates and a new compressor you will be almost at the cost of a new unit.

I would have him do a test replacement of the contactor relay/switch, run cap and fit a hard start just in case the comp is a little stiff.. however if that's the case then you
are in for a replacement anyway.


« Last Edit: July 10, 2018, 07:06:04 AM by solarman »
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Gary RV_Wizard

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Re: Coleman Mach 15 Compressor Replacement
« Reply #6 on: July 10, 2018, 07:16:56 AM »
youracman gave good advice.  The RV roof a/c units are not designed to have replaceable components other than the circuit board and capacitors. The compressor, condensor, evaporator and refrigerant system are a single sealed unit with no provision to recharge or replace anything, so the labor cost of repair typically equals or exceeds the cost of total replacement.

Your RV dealer can't get parts for it from Airxcel (Coleman Mach), but the compressor will surely be an refrigeration industry standard item.  If you can find a part ID of some sort on the compressor, you can probably source it online from the compressor manufacturer.  Maybe your a/c guy works cheap enough to make it practical. Here is one possible source:
http://colemanmachac.com/new-compressors/
Gary
--------------
Gary Brinck
Summers: Black Mountain, NC
Home: Ocala National Forest, FL

tlwalker

  • Posts: 2
Re: Coleman Mach 15 Compressor Replacement
« Reply #7 on: July 10, 2018, 01:36:19 PM »
Thank you all for your responses and suggestions. I am going to have someone else look at the unit as suggested. I don't know enough about how to check the items you mentioned, but it's worth checking out. I finally climbed on the roof and took pictures of the compressor and A/C unit tags. I've tried to find the compressor based on the part number RGBB515BAA, but still no success.