Question about Emerson Quiet Kool 6GC53 Air Conditioner
Turned air conditioner on. Fan started normally. But thermostat refused to kick in and start the compressor. Steps taken: 1. Tried various fan speeds. 2. Tried various thermostat settings. 3. Tried various combinations of 1. and 2. Result: Fan still running, but no cooling. At first, changing thermostat settings from MAX to MIN, there wasn't even a click, nothing. After running it for an hour or so, it now clicks (at the compressor on/off point), but still no compressor start, no cooling.
Chesapeake, given your symptoms you'll be looking at installing a new Selector Switch. But, before you go there... UNPLUG THE UNIT OR SHUT OFF THE BREAKER!!! Your selector switch does two things at a time, It energizes the fan motor (which it IS doing) and energizes the compressor at the same time. The voltage to your compressor goes from the wall into the selector, out of the selector, through the temp control then to the compressor. When the temp control is satisfied, it interrupts power to the compressor. The click you hear is the temp control being NOT satisfied and trying to send power to the comp. But if there is "no power" to send (i.e., the selector switch has failed)the compressor won't know to engage. Remove the front panel and filter. Remove the control box housing. Remove the knobs from the controls. You will now see the selector switch. Remove the 2 screws that fasten it (don't remove the wire yet!) and install the new switch. Then, one wire at a time, remove the wires from the old switch and install them on the new one. ***If you have an OHM meter, check the temp control before ordering a selector because this may be the problem and NOT the selector! To do this... remove the 2 wires from the temp control, set the control to "coldest". Then with your meter, test OHM's between the terminals. If you see "zero" OHM's, it's good. If you see no change in your meter, it's bad and THIS is the source of your problem. If you don't have a meter... you can test using this procedure... cut a 6" length of wire and strip the ends to about 3/8", twist the copper ends tightly. Remove both wires from the temp control, then insert one end of your jumper wire into one terminal and the other end into the other terminal. Make sure the "jumpered" wires are away from anything metal!!! And plug the unit back in. Now turn the unit on. If the unit fires up? It's the temp control, If not? it's the selector switch. Here's a link for parts...http://www.repairclinic.com/0080.asp
Posted on Aug 09, 2007
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