I see variable information in this thread.. First, there are two motors in the Rooftop A/C. one blows air around the other circulates coolant (The compressor) which is bad.
If it is the blower you won't be needing 2 people.. I will describe the blower motor replacement on a Carrier Air V,, the one you have should not be much different. this includes the tough part.
Remove top cover
Remove inner cover on condenser coils, loosen the set screw on the fan and slide it off the end of the shaft if you can
Remove the upper electronics/connection board cover (2 screws) this part will likely be different (perhaps not needed) on yours, Remove evoprator cover.. On mine this involved both screws and push to release latches.. Again may be different on yours.
Using straight blade screwdriver un-latch latches that hold motor to cradel (Put blade in the "hook" on the end of the thing and rap firmly down with hand while prying out slightly.
Unplug motor wiring harness and lift out blower assembly.. Loosen set screw on blower cage and slide it off.
Re-assembly is reverse.
NOTE: you may only need a new start condenser,, (on mine it's in the electrical box, on some it's on the motor).
One person, perhaps half an hour on the roof.
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If it is the condenser, then replacement of the entire roof unit is indicated
THIS IS a two man (At least, i'd like to have 4) job. Dealer used 4 men and a front end loader.
