TM 10-5410-228-24
2.8
UNIT LEVEL TROUBLESHOOTING PROCEDURES Continued.
25. NO AIR FLOW WHEN MISSION PROFILE SWITCH IS SET FOR MOBILE MODE, `MOBILE'
INDICATOR OFF, AND ESS MODE SWITCH ON, INTERNAL POWER MODE Continued.
1
Gain access to circuit breaker A4CB2
(see para 2.13.23).
Set circuit breaker to ON.
Test circuit breaker for continuity.
No
Replace circuit breaker
Does continuity exist?
A4CB2.
Yes
Gain access to ESS MODE selector
switch.
Test switch for continuity between
terminals 21 and 28.
Do a continuity check of the
electrical wiring on terminals
Yes
Does continuity exist?
21 & 28 per Appendix F, Fig.
F-9, sheet 3.
Repair wiring as required.
No
Replace switch.
2-90
