Question about Coleman Mach III Air Conditioner
Check that the thermostat is OK. You can do this with an Ohmmeter or a Volt Meter. If it is cool only, there are two terminals on the rear. Cut power to the AC and remove these wires and with an ohmmeter, check the two terminals for continuity. If there is none, then turn the dial all the way to the coldest setting and see if it changes. If not, you have a bad thermostat. If you have continuity and the compressor still does not come on, check the Start Capacitor in the upstairs unit.
Posted on Jun 30, 2009
Make sure thermostat switch is turning properly,maybe stripped? Good luck!!!
Posted on Jun 21, 2009
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Posted on Jan 02, 2017
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