I have a carrier weathermaker 9200. It is throwing code 33. The furnace big fan will not come on and it smells like there is an electical fire. I think the big fan motor is burnt out. The small fan comes on and then the gas ignites and about 3 minutes it stops. The large fan does not come on. Any suggestions?
You pretty much are right on the money. The code is for priXXXX XXmit trip…and this is because the blower didnt cool the furnace.
Now just to make sure…you have 2 choices….either the circuit board is bad or the motor. The goal is to see if the motor is getting 115v or not. If the motor is hot it is a safe bet it is motor and not circuit board.
This involves replacing the motor.