GE 040324 Operator's Manual page 18

Low Oil Pressure (FC_2)
This fault is indicated by fault code FC_2. The unit is equipped
with an oil pressure switch that uses normally closed
contacts held open by engine oil pressure during operation.
Should oil pressure drop below the 8 psi range, switch
contacts close and the engine is shut down.
To remedy the low oil pressure condition, add the
recommended oil to the FULL mark on the dipstick.
If the low oil pressure condition still exists, the engine will
start, then shut down again. The fault code will appear. In
this case, contact an authorized dealer.
Low Voltage (Generator, FC_3)
This fault is indicated by fault code FC_3. This condition
is caused by a restriction in the fuel flow, a broken or
disconnected signal lead, a failed alternator winding, the
control panel circuit breaker is open, or the generator is
overloaded.
To remedy the problem, contact your installer or an
authorized dealer.
Engine Does Not Start (FC_4)
This fault is indicated by fault code FC_4. This feature
prevents the generator from damaging itself if it continually
attempts to start in spite of another problem, such as no fuel
supply. Each time the system is directed to start, the unit
will crank for 10 seconds, pause for 10 seconds, and repeat.
If the system does not begin producing electricity after
approximately 2 minutes, the unit will stop cranking.
Check to make sure the generator's main circuit breaker is in
the ON position in order for the sensing leads to verify that
the unit is running.
The most likely cause of this problem is no fuel supply. Check
the internal and external fuel shut off valves to ensure they
are fully open. Other causes could be failed spark plug(s),
failed engine ignition, or the engine air filter is clogged. You
may need to contact your installer for assistance if you can't
remedy these problems.
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Low Frequency (FC_5)
This fault is indicated by fault code FC_5. This feature
protects devices connected to the transfer switch by shutting
the generator down if the engine runs slower than 55 Hz for
three seconds.
This condition is caused by a failed engine component or by
excessive loads on the generator. To remedy the problem,
contact your installer or an authorized dealer.
Engine Overspeed (FC_6)
This fault is indicated by fault code FC_6. This feature
protects devices connected to the transfer switch by shutting
the generator down if the engine happens to run faster than
the preset limit.
The overspeed fault is detected as follows:
• If the generator output frequency is 65-70 Hz, after
three seconds, the generator will shut down.
• If the generator output frequency is greater than
70 Hz, the generator will shut down immediately.
This condition is caused by a failed engine component.
To remedy the problem, contact your installer or an
authorized dealer.
High Temperature (FC_7)
This fault is indicated by fault code FC_7. The contacts of
the temperature switch are normally open. If the engine
temperature exceeds approximately 149°C (300°F), the fault
is detected and the engine shuts down.
Common causes for this condition include running the unit
with access panels removed, obstructed air inlet or exhaust
port, low oil level, or debris in the engine cylinder cooling fins.
To resolve the problem, let the engine cool down and remove
any accumulated debris and obstructions. Ensure that all
access panels are installed whenever the unit is running.
Transfer Switch Fault (FC_8)
This fault is indicated by fault code FC_8 (if transfer switch is
equipped with fault detection).
The most likely cause of this fault is a blown fuse in the
transfer switch. To remedy the problem, contact your
installer or an authorized dealer.