Hello, usually this is a sign of a bad blower relay on the intergrated control board. The only option is to replace the control board.
SOURCE: Carrier Weathermaker SX
If you are running it in the cooling function, your drain maybe backed up. Find your drain outside if you can and suck it with a shop vac.
SOURCE: Carrier Weathermaker 8000Vs
This is nothing short of a circuit board fan relay of a bad motor.. to find out if the motor is good, unplugg the black & white wire , in which white =ground black=hi-speed 120volts and conect them to power -ground and see if the motor works..if does, then its the fan circuit board if not then its a bad motor...
SOURCE: Carrier Weathermaker SX model 58SX060-CC Blower runs all the time
Remove all power from the furnace, it is likely the brain in the furnace is need of being reset, from the battery replacement, why did you change the battery, was there an indicator telling you to change it?
Many times just removing all the power to the furnace will do the trick with a reset, if not let me know and we will go from there, but it sounds like the main brain is confused or bad, more likely confused, so try the power removed first.
Than let me know [email protected]
SOURCE: Carrier Weathermaker 8000 furnace blowing COLD AIR
you have a dirty flame sensor. just needs mantenance.
SOURCE: Carrier weathermaker sx 58 furnace
I have serviced these furnaces for 20 years and I can tell you most of these models did not have diagnostic lite on them. (although some did, especially if the control board has been replaced) The problem is most likely a bad 3 wire pilot. This will cause exactly what you describe. 2 things to consider though. 1, If you were to replace the pilot don't get a cheaper knockoff. In my experience these do not last long at all. Get the right one from a carrier dealer. It will cost more but be much more reliable. 2 What is the condition of the secondary heat exchanger? Most if not all of the sx series had issues with the secondary heat exchangers rotting out and leaking. If the furnace is out of warranty you would be much better replacing the furnace as the cost of replacing the secondary heat exchanger will probably be almost the same as a new furnace. ( those babies are EXPENSIVE!)
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