First time using the AC. Won't go on. Heater works.
Carrier Infinity model #24ANA1. Thermostat model goes w/ system. Says: "Curtailment Active." Fan on auto, Cool. Temp set lower than ambient temp. Fan in house works, but fan outside won't turn on. First time using AC. Brand new as of Oct. 08. Furnace works fine. Breakers are on.
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Dan is this a new system, or has some work on the system (to include the thermostat) been done recently?
Sounds like the thermostat may be wired wrong. From what you describe, the igniter element is coming on, as though you are calling for heating. Do you allow the ignitor to keep going and see if the gas fires off, or are you seeing this and shutting down the system immediately?
If you had the t-stat changed recently, or this is a new system, contact the installing contractor. It may be under warranty.
A follow-up to my previous post. I talked with a technician from the Co that installed my unit, and the issue lies in the "Utility saver mode" for the 2 stage heat pumps, and having the high stage locked out. In the Advanced Setup menu (hold the "Advanced" button for 10 seconds to access this menu, look for the "Utility Saver" menu item. Select it and your system probably shows that "Utility Saver" is enabled, which only allows your heat pump to run on the low stage and not the high stage. If you change the the setting to be disabled, this will allow your system to run at the high stage and should solve your problem.
I have not changed the settings on my system yet to confirm this solution. That will have to wait until I get home this evening.
Your old stat is wired for a traditional thermostat and not a communication stat like the new infinity you have. There is a module plug on the furnace board that will need to be connected to the new thermostat for it to work. The wires that are wired now are from a terminal strip inside the furnace. Please contact your local Carrier dealer. They may be able to get that harness for you
Contact the company that installed the unit. Its new, under warranty, Anything you do could void the warranty. If they do not take care of the problem without charges contact Carrier and tell them what's going on. The company who installed the unit is responsible for making it run correctly. Good luck.