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Old 09-22-2018, 08:36 AM   #1
Qwerty
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Coleman Mach 3 A/C Heat Strip

I have a Coleman Mach 3 (8000 series). I decided to invest in the optional heat strip despite all the reasons not to. Upon fitting I found that my a/c unit didn't have the required two pin connector for the strip although I do have a heat/cool thermostat.

Any ideas on how or, if it is even possible to wire this without the 'heat ready' connectors?
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Old 09-22-2018, 08:13 PM   #2
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If you haven’t checked already, Coleman has a library of service info available.

http://www.airxcel.com/coleman-mach/...cument-library
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Old 09-29-2018, 11:25 AM   #3
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The wire for mine was hanging down. Easy to find. Where to plug it in...not so much. If there, it could be pushed up under something.
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Old 09-29-2018, 01:46 PM   #4
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For what the heat strip costs vs, the amount of heat put out, you might be happier with a portable 110bv plug in heater that can be moved around as needed.

My last trailer had a heat strip. It was pretty much useless below 60 degrees.

Good Luck,
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Old 10-01-2018, 11:29 AM   #5
Qwerty
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I finally discovered that my control unit is heat only, as I believe all stock units are. If you decide to buy a heat strip then you probably need to upgrade your control panel too. That will cost an additional $75 approximately so, the total cost for a mediocre source of heat is < $100. I sent mine back. The connector for the heat strip (if you have one) can be found on the end/side of the control unit which you can access from inside your RV by removing the filter holder.
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Old 10-01-2018, 06:49 PM   #6
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We bought a small electric heater at Walmart. Works good as a preheater for the LP.
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Old 10-02-2018, 01:44 AM   #7
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I had a heat strip in a Coleman A/C unit that I installed in an enclosed trailer that I had. It was better than not having one, but not by much. To me, after that experience..they are pretty much a waste of money.
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