Briggs & Stratton Fortress Installation And Operation Manual page 42

Reset Service Code Detection System
The operator must reset the service code detection
system each time it activates. To do so, press the
control board OFF button for 5 seconds. Once the
display turns off, leave it off for at least 30 seconds.
Remedy the service code condition, then return the
standby generator to service by pressing and holding
the control board AUTO button and installing the 15
Amp fuse (if removed).
Low Battery Voltage
This service code is indicated by Low Battery Voltage
scrolling across the digital display. This condition
occurs if the battery voltage drops below the preset
value. Causes for this problem may be a service code
battery or battery charge circuit. See Battery Charge
Circuit.
Remove the 15 Amp fuse and disconnect the battery
from the generator. Test the battery voltage. If voltage
meets specifications, take the battery to a local battery
store for analysis. Or contact your local service center
for assistance.
Reinstall the battery (replace if necessary - see Battery
in Final Installation Considerations in the installation
manual). Then reset the service code detection
system, as described earlier.
Low Oil Pressure
This service code is indicated by Low Oil Pressure
scrolling across the digital display. 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 will 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 service code will
appear. In this case, contact an authorized dealer.
Under Voltage
This service code is indicated by Under Voltage
scrolling across the digital display. This condition is
caused by a restriction in the fuel flow, the electronic
governing system not functioning properly, a broken or
disconnected signal lead, a failed alternator winding,
the control board circuit breaker is open, or the
generator is overloaded.
To remedy the problem, contact your installer or an
authorized dealer.
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Over Voltage
This service code is indicated by Over Voltage
scrolling across the digital display. This feature
protects devices connected to the transfer switch by
shutting the generator down if the generator output
voltage happens to increase above the preset limit.
This condition is most likely caused by a failed
voltage regulator, alternator excitation circuit or a
load imbalance. To remedy the problem, contact your
installer or an
authorized dealer.
Engine Does Not Start
This service code is indicated by Engine Does
Not Start scrolling across the digital display. 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.
The most likely cause of this problem is no fuel supply
or incorrect fuel selector setting. See Fuel Selection
Switch in the installation manual. Check the internal
and external fuel shut off valves to ensure they are fully
open. Other causes could be failed spark plug(s), a
loose electronic governor connection, a 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.
Low Frequency
This service code is indicated by Low Frequency
scrolling across the digital display. 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, electronic governor
system, or by excessive loads on the generator.
To resolve the problem, contact your installer or an
authorized dealer.
Engine Overspeed
This service code is indicated by Engine Overspeed
scrolling across the digital display. This condition can
be caused by a problem within the electronic governor
system.
To resolve the problem, contact your installer or an
authorized dealer.