Question about Coleman Mach III Air Conditioner

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Type of coolant for coleman rv a/c model number 7335c8964

A/c not cooling properly in heat of day in airstream, works fine in evening. don't know what kind of coolant. serial number 029807881. hope one of the numbers will tell what year and kind of coolant. thanks

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17 ounces of R-22

Posted on Aug 08, 2010

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Posted on Jan 02, 2017

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1 Answer

Airstream 7335c8964


you have to change these like a window unit motor. remove cover to access

Dec 29, 2013 | Coleman Mach III Air Conditioner

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I am trying to buy a shroud for my coleman rv ac unit its an older rv 1995 and i have found so far that the shrouds have changed and everywhere i look they want a model number. Any info on the outside have...


Sorry we have no referral service here or anyway to locate the parts for you. That said my friend had to have his custom made. He is in Calif and I don't know where he had it made.

Jul 24, 2017 | Coleman Mach III Air Conditioner

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Coleman Mach a/c will not turn on. But the furnace will turn on when switched to cool high and no a/c or blower. What can be the problem?


COLEMAN R.V. AIR CONDITIONER SERVICE AND REPAIR QUESTIONS
COLEMAN R.V. PRODUCTS
GO TO rvcomfort.com
Click on RVP (RV PRODUCTS)
Click on type of AC, if you can’t find the information you want there,
then click on contact us on the Green Bar.
You can get Service Support or Email address and Phone numbers.

Jun 29, 2010 | Coleman Mach III Air Conditioner

1 Answer

Cools fine for about 30 minutes then turns off but wont come back on. it has to sit about 2 hours then the cycle continues.


COLEMAN R.V. AIR CONDITIONER SERVICE AND REPAIR QUESTIONS

GO TO rvcomfort.com
Click on RVP (RV PRODUCTS)
Click on type of AC, if you can’t finCOLEMAN R.V. PRODUCTS
d the information you want there,
then click on contact us on the Green Bar.
You can get Service Support or Email address and Phone numbers.

Apr 06, 2010 | Coleman Mach III Air Conditioner

1 Answer

I have a colman mach thermostat model 7330D3351 heat/cool I need to know how to reset my unit.


COLEMAN R.V. AIR CONDITIONER SERVICE AND REPAIR QUESTIONS
COLEMAN R.V. PRODUCTS
GO TO rvcomfort.com
Click on RVP (RV PRODUCTS)
Click on type of AC, if you can’t find the information you want there,
then click on contact us on the Green Bar.
You can get Service Support or Email address and Phone numbers.

Jan 15, 2010 | Heating & Cooling

1 Answer

One day my RV Coleman ac just quit running on low cool but every other setting works fine. Any ideas?


Is your Air Conditioner run with a wall mounted thermostat or the ceiling pack controls? If it is the ceiling pack controls, then your selector switch has gone bad and needs to be replaced. This is located in the ceiling pack itself and is relatively easy to do. You can easily test it with an Ohmmeter, going through these steps:

To check the selector switch, remove wires from the terminals
and rotate the switch to the proper position and read
continuity as follows:
Terminals Switch Position
L-1-3 Lo Heat
L-1 Lo Fan
L-2 Hi Fan
L-1-4 Lo Cool
L-2-4 Hi Cool
* If you do not wish to remove the wires from each terminal,
disconnect the 9 pin plug from the a/c unit.

Hope this helps,

Jeff

Jun 27, 2009 | Coleman Mach 15 Air Conditioner

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Replacement fan motor for coleman mach3..need wiring diagrm


COLEMAN R.V. AIR CONDITIONER SERVICE AND REPAIR QUESTIONS
COLEMAN R.V. PRODUCTS
GO TO rvcomfort.com

Click on RVP (RV PRODUCTS)
Click on type of AC, if you can’t find the information you want there,
then click on contact us on the Green Bar.
You can get Service Support or Email address and Phone numbers.

Apr 14, 2009 | Coleman Mach III Air Conditioner

1 Answer

Penguin a/c


the multiple zone thermostat should work fine but sounds like this one has an internal failure try replacing the thermostat

Jun 21, 2008 | Dometic Rooftop RV Air Conditioner

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