Magnum Energy ME Series Operator's Manual page 66

2.3 AC BREAKERS
2.3.a Remove top cover per 2.1
2.3.b Remove 4- #6 x ½ Torx screws from corners of ac board and lift board slightly
(see 2.2 for screw location) 2.3.c Loosen knurled nut on breaker shaft and pull
breaker out
2.3.d Reinstall new breaker in reverse order 2.3.e
Reinstall Top Cover
2.4 CONTROL BOARD
2.4.a Remove top cover per 2.1
2.4.b Remove 2 - #6 x ½ Torx screws from lower L brackets in control board
2.4.c Pull control board straight up to disconnect from FET board
2.4.d Remove ribbon cable from control board. Note orientation of ribbon cable
on connector. (colored cable has brown wire facing rear, gray cable has
red wire facing rear).