Question about Coleman Mach III Air Conditioner
I have a coleman top unit in my travel trailer the wires running from the thermostat are red green white or maybe grey yellow and blue but the circuit board on the a/c unit has connections for grey yellow blue and green and 2 wires for the freeze protector can you tell me how to hook up the wires to the a/c unit, the thermostat also has wires for the heat unit, will the fan come on if you only have 15 amp service
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Posted on Jan 02, 2017
Thanks for the response, to be more specific, the nine pin connector was damaged, but I was able to connect the wires back to main unit panel. I am ready to hook to the hunter thermostat and do not know which wires to connect to. This is my problem and I do not want to short something out. Hope this helps, I want to get it installed again. Thanks again for caring....Jerry
Posted on Aug 16, 2008
R = HOT 12V
W= WHT- GND
Y = YELLOW / POSSIBLE THERMOSTAT
G= GRND FOR THERMOSTAT
f = FAN
aSSUMING THIS IS A TWLVE VOLT SYTEM- The two f's Would be fan control intake and exhaust - fan direction
White is always ground and so is green.. green is more of a static ground where white is a load grnd.
Red is always hot. in low voltage
I hope this helped. No instructions in kit?
Posted on May 18, 2009
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.
Posted on Jul 28, 2010
The clicking is normal and is caused by the thermostat attempting to activate the compressor to come on. Since neither the fan nor compressor runs when the switch is turned on, then it appears as if the electrical power is not getting to the RV AC unit.
Check the breaker panel to be sure the power is going through the breaker and on to the AC unit first. In some cases the breaker will appear to be good but is not allowing the electrical power to pass through.
It is possible for the electrical connections in the ceiling panel assembly to be loose or the wire nuts may not be tight enough. If all of these connections seem okay the control switch itself may be shorted out.
A multimeter is very useful for checking the connections and switches for proper functioning. If you still cannot trace down the problem, please feel free to ask for further info. Let me know if you find the issue in the electic supply if not we can start to trouble shoot the system. It is not uncommon for a breaker to kick when unhooking and hooking back up to an electric system in a camp park.
Posted on Jul 25, 2011
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