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Old 10-24-2021, 11:03 PM   #1
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Help! Airxcel Tstat & Coleman Mach AC

Our AC in our 2021 Grey Fox 23dBH has never functioned on any low setting. If yours works fine,can you tell me if your wiring is same as these pictures please
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Old 10-25-2021, 07:42 AM   #2
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What does any low setting mean? it might help in figuring out what the problem is.
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Old 10-25-2021, 11:10 AM   #3
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Low settings of fan low, ac low, ac low auto. Fan hi, ac hi, ac hi auto all work. Iím suspecting itís the GL wire (brown here) but any help welcome. The green GH wire must be working great?
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Old 10-25-2021, 11:23 AM   #4
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you would be correct in that interpretation. "G" is always fan, Y is always cooling, W is always heat. HVAC Industry standards


There's very little difference between high and low on the AC, you can hardly hear or feel the difference. The furnace fan is controlled by the furnace. Make sure the fan setting is set to "auto" or the AC fan will run whenever the furnace is on.
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Old 10-25-2021, 12:25 PM   #5
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Does it run on high all the time or does the fan stop when it is on low?

Have you tried swapping the GH & GL wires to see if it continually runs on low instead of high?
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