What is the difference between the Hatco blower motor 02.12.003 and 02.12.003B?
Looking at the manual for the Hatco FSHC here:
120V units manufactured on or before June 1988 should use Hatco 02.12.003B.00 BASIC BLOWER MOTOR KIT 120VOLT | Parts Town
While units manufactured after should use Hatco R02.12.003.00 KIT,BLOWER MOTOR-FS&FSHC-120V | Parts Town
As far as more technical differences, I cannot say.
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