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Old 10-14-2015, 03:47 PM   #1
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Duo-Therm Ducted AC Thermostat

This isn't on the Sunline but I got good help here fixing my fridge. Duo-Therm Brisk Air Ducted AC unit 13,500 Model 57915.303. It's from 1992.

I believe the wall thermostat is bad. Actually it seems to function OK except for the on-off power switch. I had it in the off position and the AC hummed , quit for a second then came on. I should have known because when we looked at the unit, the wife opened the circuit box and turned the breaker on to start the air.

I believe it's the little slide switch on the circuit board ?? I could change it if I could source a new one. I'd just buy a new thermostat assembly but not having any luck finding any this old. The furnace has it's own thermostat.

So any suggestions? Maybe something that will retrofit without spending half of a new AC. I see lots of replacements but not sure what will be compatible.
Thanks
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1990 StarRay T205
2005 Dodge Dakota V8 Tow pac.
1992 Gulfstream Ultra LE Mini 27'
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Old 10-14-2015, 07:45 PM   #2
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I had good luck buying one on ebay and it was inexpensive. Mine is a combo A/C and furnace with hi/low fan. Is there a part number on your thermostat? It may be somewhere on or near the cover or you may have to turn off the power to it and unscrew it from the wall. The tag may be on the back of it. With mine, the model was replaced with a newer one and all sellers listed the cross reference number.
Steve
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Old 10-15-2015, 09:19 AM   #3
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I'll check it out. Thanks
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1990 StarRay T205
2005 Dodge Dakota V8 Tow pac.
1992 Gulfstream Ultra LE Mini 27'
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