Generac Power Systems GP Series Owner's Manual page 10

Use this receptacle to operate 120/240 Volt
AC, 60 Hz electrical loads requiring up to
12,000 watts (12.0 kW) of power. This recep-
tacle is protected by a 50 Amp 2-pole circuit
breaker.
Figure 2-8. 120/240 VAC, 50 Amp Receptacle
NEMA 14-50
Malfunction Indicator Lamp
(MIL)
The MIL, located on the control panel (see
Components), is used to indicate
Generator
when there is a fault in the engine system.
The fault lamp displays a 2-digit code by flash-
ing a sequence of long and short flashes.
Long flashes are 1.2 seconds, and short
flashes are 0.25 second.
MIL Icons
See
Figure 2-9.
• Condition 1: MIL is not lit, engine and key
are OFF.
• Condition 2: MIL is dimly illuminated, con-
stant on (not flashing). This indicates the
engine control system is running properly
(i.e. no fault) (A).
• Condition 3: MIL is brightly illuminated and
flashing. This indicates there is a fault with
the engine control system. (B) See
shooting.
A
Figure 2-9. MIL Icons
8
Trouble-
MIL
B
MIL Operation
• When the key is switched ON, the MIL will
illuminate for 0.5 second (this does not indi-
cate a fault).
• If multiple failures have been detected, the
MIL will pause for two (2) seconds between
fault codes.
• Once the MIL has flashed all failure codes,
the MIL will pause for five (5) seconds and
then repeat the codes. The lamp will con-
tinue to repeat the codes until they are no
longer active or the key is switched OFF.
• Once the fault(s) have been resolved, the
codes will be saved in the Engine Control
Module's (ECM) fault history memory.
000924
Active Fault Codes – Shutdown
If a fault has been detected that requires stop-
ping the unit, the engine will automatically
stop (or will not start) and the lamp will flash
the active fault code. Before the unit can be
started, the key must be first turned to the
OFF position to clear the active fault. The fault
code will be saved in the fault history memory
when the key is switched off.
Active Fault Code – Warning
If a fault has been detected, but does not
require stopping the unit, the MIL will flash the
fault code as long as the fault is present. If the
fault is no longer present, the lamp will stop
flashing and the fault code will be saved in the
fault history memory.
Fault History Memory
The ECM will store a list of faults for three (3)
ON-OFF key cycles. To view previous faults,
turn the key to the ON position, do not start
engine. After 30 seconds, the MIL will flash
previous faults stored in memory. The fault
codes will be displayed with a flashing
sequence similar to active faults. When the list
is completed it will restart at the beginning. To
stop the sequence, either switch key OFF or
start engine.
014065
Owner's Manual for Portable Generator