My newly aquired customer has 4 of these package rooftop units,
The 20 amp condenser fan fuses blow from time to time.I first
saw it happen this summer.
The motors ohm out good and draw
about 6 amps.Two (208vac/1 phase) motors per 20 amp fuse
(one 20 amp fuse per line)
I had another call on one of these yesterday where all 4 fuses were blown(all 4 fans offline).Replaced the fuses after checkingfor grounds,open windings and bad run capacitors.Motors came online without a hitch.