Before Servicing the System
WARNING
Unintentional sparking could cause fire or
electric shock resulting in death or serious injury.
When adjusting or making repairs to your generator
• Disconnect the spark plug wire from the spark plug and place
the wire where it cannot contact spark plug.
WHEN TESTING FOR ENGINE SPARK
• Use approved spark plug tester.
• DO NOT check for spark with spark plug removed.
Before performing any generator maintenance, always
perform the following steps:
1. Set generator circuit breaker to its OFF position.
2. Press control panel OFF button.
3. Remove 15 Amp fuse from control panel.
4. Utility voltage is present at generator control
panel. Disconnect power before servicing control
panel by removing the fuses from the transfer switch.
After all servicing has been completed, reinstall fuses in
transfer switch, replace 15 Amp fuse in control panel, set
circuit breaker ON and reset exercise timer. See Setting
the Exercise Timer.
Service Code Detection System
During a utility power failure, the generator may have to
run for long periods of time with no operator present. The
generator is equipped with sensors that automatically shut
down the generator in the event of potentially damaging
conditions, such as low oil pressure, high temperature, or
over speed.
The Service Code Detection System installed in the standby
generator monitors for potential operation failures to protect
the unit. The operation failure will be shown in the display
window of the system control panel. The service code
descriptions and explanations are listed below.
• Low Battery Voltage
• Low Oil Pressure
• Low Coolant Level
• Under Voltage
• Over Voltage
• Engine Does Not Start
• Low Frequency
• Engine Overspeed
• Service Engine
• High Coolant Temperature Warning
• High Coolant Temperature
• Transfer Switch Fault
• No Wireless Communication (optional)
• Battery Charge Circuit
30
Low Battery Voltage
This service code is indicated by Low Battery Voltage in the
display. This condition occurs if the battery voltage drops
below the preset value.
Remove the 15 Amp fuse and disconnect the battery from
the generator. Test the battery voltage. If voltage meets
specifications, contact your installer or an authorized dealer
to have the battery serviced or replaced.
Reinstall the battery, and then reset the service code
detection system, as described at the end of this section.
Low Oil Pressure
This service code is indicated by Low Oil Pressure in the
display. Should oil pressure drop below approximately 50
psi, the engine will shut down. To resolve this condition, add
the recommended oil to the FULL mark on the dipstick. If
the condition continues, the engine will start and then shut
down again. To resolve the condition, contact your installer
or an authorized dealer.
Low Coolant Level
This service code is indicated by Low Coolant Level in
the display. If the coolant drops below a pre-set level, the
engine will shut down. To resolve the condition, let the
engine cool down and add coolant to the cooling system.
If the condition continues, contact your installer or an
authorized dealer.
Under Voltage
This service code is indicated by Under Voltage in the
display. This condition is caused by a restriction in the
fuel flow, the electronic governing system not functioning
properly, a broken or disconnected sensing lead, a failed
alternator winding, the control board circuit breaker Open,
or the generator being overloaded. To resolve the condition,
contact your installer or an authorized dealer.
Over Voltage
This service code is indicated by Over Voltage in the
display. This feature protects devices connected to the
transfer switch by shutting the generator down if the
generator output voltage increases above the pre-set limit.
This condition is most likely caused by a failed voltage
regulator, alternator excitation circuit, or a load imbalance.
To resolve the condition, contact your installer or an
authorized dealer.
BRIGGSandSTRATTON.COM