Technical data

13773-001
24-00
Page 2 30 Nov 2000
Battery will not hold charge Flights too short to recharge suffi-
ciently
Remove corresponding battery
and recharge when necessary
Loose connections, corrosion Tighten, clean, and neutralize con-
nections
Faulty battery Replace corresponding battery
Standing too long (hot climate) Remove corresponding battery
and recharge when necessary
Short battery life (Battery 1) Electrolyte level below top of
plates
Keep electrolyte level above
plates
Battery hold down loose Keep hold down secure at all
times
Overcharging of battery (faulty
voltage regulator)
Replace MCU
External Power Receptacle Inop-
erable
BAT 1 switch in “OFF” position Place BAT 1 switch in “ON” posi-
tion
Faulty ground wire/connection Inspect and repair ground wire/
connection at receptacle or fire-
wall ground bus bar
Faulty ground power relay Replace MCU
Low Volts Light Illuminates High demand on electrical system
with a low engine RPM setting
Increase engine RPM or load shed
Faulty logic module or current sen-
sor
Replace MCU
Alternator is noisy Worn alternator bearings Replace corresponding alternator
Faulty alternator diode(s) Replace corresponding alternator
Troubleshooting Power Generation System
Trouble Probable Cause Remedy