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I have a carrier infinity series model 59TN6A which
I have a carrier infinity series model 59TN6A which currently uses the carrier communication wiring using ABCD wires. I would like to install an Ecobee Smart Thermostat, but I assume I will need to co… read more
BillyHvac
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Putting in an eccobee lite thermostat replacing carrier
putting in an eccobee lite thermostat replacing carrier infinity. wires on carrier are labeled A,B,C,D. how do i connect? … read more
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I am replacing Carrier Infinity themostat with Ecobee and
I am replacing Carrier Infinity themostat with Ecobee and running into some issues … read more
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My carrier infinity thermostat won't turn on. I tried to
My carrier infinity thermostat won't turn on. I tried to replace with nest thermostat, realized it wasn't compatible. Put the carrier thermostat back on and it's not getting any power … read more
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I have a Carrier Infinity System thermostat. We have a heat
I have a Carrier Infinity System thermostat. We have a heat pump. I have purchased the Ecobee digital thermostat. Trying to install the new Ecobee. Behind the old thermostat are four wires: A (green),… read more
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AC has not turned on. Smart thermostat, 3 amp fuse, oval run
AC has not turned on. Smart thermostat, 3 amp fuse, oval run capacitor all replaced today, but the smart thermostat does not even read AC … read more
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Trying to install an ecobee thermostat to a carrier infinity
Trying to install an ecobee thermostat to a carrier infinity furnace/AC. I moved the wires from the ABCD block to terminal screws on the circuit board. The unit powers but gets a solid yellow light an… read more
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I have carrier infinity Upstairs I have abcd wires coming
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Fe4a ABCd to Honeywell thermostat. sorry. I have carrier
Hi, sorry. I have carrier fe4a/5a blower/fan unit that's connected to old carrier infinity thermostat. I would like to upgrade to homeywell wifi. Carrier is using ABCD, I read that I need to switch to rcyow. I opened the fan unit amd looking at the circuit board, I'm not sure if there is a RCYOW terminal for tstat. … read more
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My contractor recommend installing a new carrier infinity
my contractor recommend installing a new carrier infinity controller when the unit saying it failed to communicate. It has always been a little flaky. Has carrier worked this problem. Does it seems li… read more
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I have a carrier infinity system and want to replace it with
Second opinion] I have a carrier infinity system and want to replace it with Nest.I just rewired abcd terminals in furnace wires as follow:Red to r white to w yellow to y/y2 green to gAfter that the A… read more
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Rewire ABCD to standard terminals (R, G, Y, W, C) at the
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I have question for the thread below which I posted last
I have a follow up question for the thread below which I posted last year.How to connect Ecobee 3 to Carrier Infinity system: https://my-secure.justanswer.com/question/guest/a3bc45ef4bcc4b028e31f8a03a… read more
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Question for you regarding wiring a carrier infinity with a
Question for you regarding wiring a carrier infinity with a Honeywell lyric. I have a gas furnace and an AC condenser. Today the terminal with the abcd wires connected in the furnace has 2 sets of wir… read more
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I am trying to install a Honeywell wifi smart thermostat but
Hello I am trying to install a Honeywell wifi smart thermostat but I currently have a carrier infinity series with an abcd system. How do I label the wires to switch my thermostat over? … read more
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Thank you time and consideration! I've run into an ABCD
Hello! Thank you for your time and consideration! I've run into an ABCD wiring puzzle! I have a Carrier WeatherMaker infinity 58MVP100-F-1720 system with all Carrier parts including a 2 stage (suppose… read more
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Carrier Infinity system thermostat is not working properly.
I have a Carrier Infinity Comfort AC and heating system. My thermostat is slowly going out and I've checked on line for a new one and the price is unbelievable. Is there a thermostat I can replace the… read more
Brian HVAC Guy
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I have carrier 58MVC infinity. It was initially set up with
I have carrier 58MVC infinity. It was initially set up with a single stage Honeywell thermostat. I replaced it with a SYSTXCCUI01-B infinity control. The Honeywell control had the same 4 wire system t… read more
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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