On a previous post I sought help about how to purchase a replacement Dometic A/C. The Dometic folks tell me that the new model to replace my old one is B57915.XX1CO. It seems that it will fit my 14 X 14 opening and will work with my existing thermostat. I am wondering if anyone out there has purchased a new A/C unit and found that it dropped in and plugged into existing coach wiring without modifications? I have had my old A/C units out to resurface my roof, so I know how to remove and replace them. This new model seems to be my best option, but I would sure like to know if it wires directly back in, since I am not the best electrician. Has anyone done this? Can I hear from you about it? Thanks in advance for any replies.
Replacing A/C's
- Thread starter napalm204
- Start date
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Rene T
Site Team
How old are the old one's and do they still work?
Gary RV_Wizard
Site Team
They should be very much alike, but not necessarily plug-compatible. Dometic is your best source on the number and function of the wires, old vs new. The actual wires & plugs on the RV side came from the RV builder, though, so they will still have to be mated up..
John From Detroit
Well-known member
Carrier no longer is in the RV A/C business so I was unable to buy a Carrier Replacement
So I got first an Advent Air (Do not recommend) with an adapt-kit.. Changed one socket (included in the kit) on the carrier control unit and plugged it in, No problem
The other one got a Coleman replacement.. Was unable to get the adapt-a-kit so went with "local" controls.. Not a problme for 6'+ me in this RV as I can easily reach them... Likewise, Dropped in, The Ducting unit was not changed or modified in any way,
So I got first an Advent Air (Do not recommend) with an adapt-kit.. Changed one socket (included in the kit) on the carrier control unit and plugged it in, No problem
The other one got a Coleman replacement.. Was unable to get the adapt-a-kit so went with "local" controls.. Not a problme for 6'+ me in this RV as I can easily reach them... Likewise, Dropped in, The Ducting unit was not changed or modified in any way,
