TM 9-2540-207-14&P
F5 - OVER CURRENT
F5
The Heater has detected that the current drawn from the vehicle has exceeded the normal operating limit of
20 amps
CHECK/POSSIBLE CAUSE
REF.
REPAIR
1
With Heater off, check for free
If Impeller does not rotate freely, replace
rotation of the Vent Impeller by
5.2.4
Vent Fan Impeller and Motor
spinning by hand
5.2.6
Restart Heater
2
Defective Power and Logic
5.5.6
Replace both Logic and Power Wiring
Wiring Harnesses
Harnesses
Restart heater
3
Defective Electronic
5.2.5
Replace Electronic Programmed Controller
Programmed Controller Board
Restart Heater
6-25
