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208boondocker · 10-11-2020, 09:57 AM

so we recently switched the a/c unit to 1 degree differential and discovered this annoying clicking before and after the furnace kicks on. pinpointed to relay box in a/c unit. we have the same dometic unit everyone seems to be referencing here, it is nice to know this is a common issue. has anyone found a way around the ac relay to stick to a 1 degree differential setting? we have a 2017 passport 2890rl, it appears this issue is well known. we live in idaho so we use the furnace frequently throughout the year. is there was a way to shut off the a/c relay in winter time and bypass it altogether?? then enable it for summer, that would be awesome.... maybe not possible, but if anyone knows??

10-11-2020, 09:57 AM	#20
208boondocker Junior Member Join Date: Sep 2020 Location: boise Posts: 4	A/C clicking sound so we recently switched the a/c unit to 1 degree differential and discovered this annoying clicking before and after the furnace kicks on. pinpointed to relay box in a/c unit. we have the same dometic unit everyone seems to be referencing here, it is nice to know this is a common issue. has anyone found a way around the ac relay to stick to a 1 degree differential setting? we have a 2017 passport 2890rl, it appears this issue is well known. we live in idaho so we use the furnace frequently throughout the year. is there was a way to shut off the a/c relay in winter time and bypass it altogether?? then enable it for summer, that would be awesome.... maybe not possible, but if anyone knows??