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Old 03-11-2019, 08:18 PM   #1
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Coleman True Air 6537 heat pump replacement

We own a 2006 Winnebago Journey 32t that needs itís basement heat pump replaced. Unfortunately, it has the Coleman 6537 heat pump with no direct replacement. Has anyone found a way to use the 46515 that is available?
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Old 03-11-2019, 09:05 PM   #2
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what is wrong with it I thought parts were available
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Old 03-11-2019, 11:13 PM   #3
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6537 heat pump replacement

The unit stopped cooling last summer. The outdoor coil fan and indoor supply air fans appear to be working. We replaced the starting capacitors but that didnít help. We donít hear the typical compressor kick in thrum noise so we figured one or both compressors are out in our 13 year old motor home so rather than spend $1000ís at the local RV shop (which we have had +/- experiences at $125/hour for diagnostics before repairs commence) for parts and labor, we were thinking it would be easier for my handyman husband just to slide a brand spanking new unit in so we could get a new unit with the latest refrigerant (R410A), component parts, etc. The RV shops also I have heard are not the most knowledgeable with these undercarriage heat pumps so that is another concern about having the old unit replaced. I have heard the R22 refrigerant in the 6537 is no longer available as well. If only we had the 6535 unit, then it would be a total no brainer. So if we could shoehorn the 46515 into the coach with some sheet metal ductwork modifications and a little messing with support brackets if needed, that seems like an attractive possibility.
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Old 03-12-2019, 04:17 AM   #4
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i would suggest a competent electrician to test your unit. Go thru the recommended tests to find the problem. My unit acted up, spent a lot of money trying to figure out problems, i now have 3 thermostats.. Anyway, once tested properly, my problem was a $3.00 thermestor..
Good luck
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Old 03-12-2019, 10:03 AM   #5
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These basement heat pumps are a lot easier to repair than folks hear from rv techs that don't touch them. I wrote a removal procedure 11 yrs ago that has been used by many, many iRV2 member themselves, or let a tech use it.


See this thread from a couple months back:HERE
Good luck,
Bill
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Old 03-12-2019, 09:53 PM   #6
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These units are more like a residential A/C unit than and RV unit . There are very few RV mechanics that can fix them. All they know is taking rooftop A/C's off and installing new. The problem is most residential
A/C companies won't work on them either. It is false that R22 is not available it is still available but it is getting expensive there are also replacements for R22 I think that one you have the return air comes through the top and the one that is available the return comes from the back. I don't know how you could redesign it to work. I doubt that both compressors are bad, but the only way to check is to remove the unit because you can't get to the compressors in the RV.
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Old 03-13-2019, 10:16 AM   #7
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I was very nervous to remove mine for repairs. Removed it 2 years ago and had repairs completed.. Very easy to take out...Remove, load up and take it to a competent HVAC shop, don't tell them its from and RV and you should be good to go..
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Old 03-14-2019, 09:48 AM   #8
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There is a duplicate ongoing thread here: Replacing 6537 heat pump
if it will help you.
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