TM 10-4610-239-24
TM 08580B-24/3
Table 3-1. Direct Support Troubleshooting - Continued
Malfunction
Test or Inspection
Corrective Action
ROWPU ASSEMBLY - Continued
3.
PANEL LAMP FAILS TO LIGHT - Continued
If check does not indicate continuity, replace S 11. Refer to paragraph 3-34.
Step 3.
Perform continuity checks point-to-point between test points G and E.
If all checks indicate continuity, go to step 4.
If all checks do not indicate continuity, repair W1. Refer to paragra h
Step 4.
Perform continuity checks point-to-point between test points F and H.
If all checks indicate continuity, replace panel light assembly. Refer to
If a wiring harness has no continuity, repair wiring harness. Refer to
If a cable has no continuity, repair cable. Refer to paragraph 3-17.
4.
UTIL OUT CIRCUIT BREAKER FAILS TO RESET
WARNING
Electrical high voltage can cause serious injury or death. Some tests performed in
troubleshooting require power to be connected. Always take proper measures to ensure
personal safety.
NOTE
Remove power from unit by disconnecting power cable at MAIN POWER IN jack J1
before connecting, disconnecting, or replacing any lead or parts. Refer to figure FO-3
for schematic diagram and figure FO-4 for interconnection diagram. Refer to figure 3-1
for control box support diagram, figure 3-2 for junction box support diagram, and figure
Step 1.
Disconnect any external device connected to utility receptacle J7. Reset UTIL
OUT circuit breaker.
If UTIL OUT circuit breaker trips, go to step 2.
If UTIL OUT circuit breaker does not trip, repair connected device.
3-13
