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Thermostat don't work

The thermostat for my comfort air model # R-183A-2 is bad. All I see in your parts listing is a RAC-183A. Would it fit my AC?

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Hi! there,
how do you able to test thermostat,i've experiencing even i buy a new one it doesn't work w/ at all same spec,before i put it on a new one i've test it with multitester setting in resistance R1 hook it on two terminal,thermostat is a switch,then
the filler bulb of thermostat soaked in ice bucket or cooler styrofore filled with ice,observed in 12 minute or 15minutes if will click off. the pointer of tester will deflect at rest position or high resistance,meaning the thermostat is working good,if you pull out the filler bulb it click on again and it has a connection again,if has no click or no response to tester for a 30 minutes this thermostat is defective.if you dont have tester ,service extension light can be a tester,connect terminals of thermostat it on a series connection,same process with the tester,have a nice day,regards

Posted on Apr 24, 2009

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Posted on Jan 02, 2017

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