Question about Coleman Mach III Air Conditioner

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I have a colman mach about 1968 model

When i turn it on high or low the fan is slower then when i unplug the brown wire it will go on high . when i cut it off then i will have to plug the brown on then take it of to high .thanks

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Replace your fan capacitor. It is probably bad. It is the capacitor with the two brown wires attached to it.

Posted on Jul 11, 2009


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High speed

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Aug 01, 2009 | Coleman Mach III Air Conditioner

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Need switch for colman a/c unit

jason, if you are willing to to a little wire tracing, you can do this! We're going to create a new switch function. Chances are that two of the wires are probably for the fan motor (high and low). I'm not sure about max and normal. This uses a two position switch. Figure out which wires go where...then...get a '3 way' switch from the hardware store (they contain a common and two 'poles') along with a plastic box to contain them, a double switch cover and some 'heavy duty zip cord'. This is lamp cord but a heavier grade called number 16 or number 14 (14 preferred). Extend each of the wires and tape the connections. Now, threading the wires into the power box, hook the two fan wires that come to the switch to the new switch. Now, the common terminals and the power supply wire (probably the black) should be hooked together. It should all work...ugly but functional. If you need an on/off switch, you can make that a three gang box and include a standard on/off switch. If you can figure out the max/normal function, you can either switch it on or off or either/or...depending on the switch function. Hope this helps.

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