TM 9-2350-247-20-1
M3 HEATER DOES NOT WORK (M548A3)Continued
0104 00
EY
1. Measure voltage from bus bar (1) to circuit output lead (2) on
circuit breaker (3).
2. Does multimeter read 17 or more volts?
YES
NO
EYN
1. Replace circuit breaker
(WP 0530 00).
2. Verify no faults found.
2EY
1. Replace relay (WP 0530 00).
2. Verify no faults found.
0104 00-6