G-Flex™ Troubleshooting - Generac Power Systems 15 kW EcoGen Owner's Manual

Troubleshooting
5.3 — G-Flex™ Troubleshooting
Ecode/Active
LED
Alarm
1048 VSCF Overload RED
1049 VSCF Overload RED
1051 VSCF High YELLOW
Battery
1052 VSCF DC RED
Overvoltage
1053 VSCF Gate RED
Fault
1054 VSCF IGBT RED
Overtemp.
1055 VSCF Phase RED
Error
1056 VSCF RED
Undervoltage
34
Table 5-3. G-Flex™ Ecode Diagnostics
Things to
Problem
Check
Unit shuts down Check the
during operation. LEDs/Screen
for alarms.
Unit shuts down Check the
during operation. LEDs/Screen
for alarms.
Yellow LED illumi- Check the
nated in any state. LEDs/Screen
for alarms.
Unit shuts down Check the
during operation. LEDs/Screen
for alarms.
Unit shuts down Check the
during operation LEDs/Screen
or starting. for alarms.
Unit shuts down Check the
during operation LEDs/Screen
or starting. for alarms.
Unit shuts down Check the
during starting. LEDs/Screen
for alarms.
Unit shuts down Check the
during operation LEDs/Screen
or starting. for alarms.
Possible Causes/Solution
Alternator, AVR or wiring is damaged.
Contact servicing dealer.
Generator output is shorted or severely overloaded. Iden-
tify and clear the overload, and then restart.
Voltage supply to the AVR is high. If an external battery
charger is in use, contact installing dealer to correct instal-
lation. If an external battery charger is NOT in use, contact
servicing dealer.
Probable causes are:
1) The generator was temporarily overloaded.
2) The output was temporarily shorted. Try to restart the
unit.
AVR is damaged. Contact servicing dealer.
Probable causes are:
1) Replace AVR filter. Inspect fan.
2) Intake or exhaust air path is blocked. Check intake and
exhaust.
3) The BIG fan is not running (Note: only runs when the
engine is running). KEEP FINGERS AWAY FROM FAN
HOUSING- PERSONAL INJURY CAN OCCUR IF FAN IS
RUNNING. Contact servicing dealer.
4) Air leak in AVR enclosure. Contact servicing dealer.
5) Engine running too hot. Inspect air intake and exhaust.
6) Ambient temperature has risen above 60º F. Derate the
generator output per specifications.
An incorrect voltage and frequency has been detected
during starting. Probable causes are:
1) Alternator damage. Contact servicing dealer.
2) Generator has started into a severe load. Manually
operate generator breaker and try to restart unit. If prob-
lem persists, remove load and attempt to restart unit
again.
3) The engine may not be reaching its prescribed speed.
Proceed as follows:
• Verify stepper motor is moving and linkage is free.
•
Verify stepper motor is plugged in.
• Verify gas pressure is within specified limits.
The generator output voltage is too low. Probable causes
are:
1) The load is too large. Remove load and attempt to
restart unit.
2) Alternator or AVR damage. Contact servicing dealer.
EcoGen Automatic Standby Generator Owner's Manual