Low Voltage; Engine Failto Start; Low Frequency; Engine Overspeed - Briggs & Stratton Home Generator Owner's Manual

Bri_,_s& Stratton Power Products Home Generator System
Owners Manual
C_ byEe_'sCu_ Hammet
Low Voltage
This fault is indicatedby three blinks.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 overloaded circuits
in the transfer switch.
Remedy the problem (you may need to contact your
installeror Briggs and Stratton Technical Services for
assistance),then reset the Fault Detection system, as
described above.
Engine Fail To Start
This fault is indicatedby four blinks.This feature prevents
the generator from damaging itself if it continually attempts
to start in spite of another problem, such as no fuel supply.
Eachtime the system is directed to start, the unit will
crank for 15 seconds, pausefor 15 seconds, crank for
15 seconds, pausefor 15 seconds,and repeat. If the system
does not begin producing electricity after approximately
90 seconds, the unit will stop cranking and the LED will
blink.
The most likelycause of this problem is no fuel supply.
Check the insideand outside fuel shut off valvesto ensure
they are fully open. Other causescould be failed spark
plug(s),failed engine ignition,or the engine air filter is
clogged.You may need to contact your installerfor
assistanceif you can't remedy these problems.When the
problem is corrected, reset the Fault Detection system as
described above.
Low Frequency
This fault is indicatedby S blinks.This feature protects
devices connected to the transfer switch by shutting the
generator down if its engine runs slower than the preset
limit.
This condition is caused by a failed engine governor or by
excessive loadson the transfer switch.To remedy the
problem, you may need to contact your installer or Briggs
and Stratton Technical Services for assistance.When the
problem is corrected, reset the Fault Detection system as
described above.
Engine Overspeed
This fault is indicatedby 6 blinks.This feature protects
devices connected to the transfer switch by shutting the
generator down if its engine happensto run faster than the
preset limitThe overspeed fault is detected asfollows:
• If the generator output frequency runs at 72 Hz for five
seconds, the generator will shut down.
• If the generator output frequency reaches 75 Hz, the
generator will shut clown instantly.
This condition is caused by a failed engine governor.To
remedy the problem, you should contact your installer or
Briggsand Stratton Technical Services for assistance.When
the problem is corrected, reset the Fault Detection system
as described above.
Oil Temperature High
This fault is indicatedby seven blinks.The contacts of the
temperature switch (Figure 5) are normally open. If the
engine temperature exceeds approximately 140°C (284°F),
the fault is detected and the engine shuts down.
Common causesfor this condition include running the unit
with all accessdoors removed, obstructed air inlet or
exhaust port, or debris in the engine cylinder cooling fins.
To resolve the problem, remove any accumulated debris
and obstructions and let the engine cool down. Ensure that
the Oil Service door and/or the Control Panel door is
installed whenever the unit is running.When the problem is
corrected, reset the Fault Detection system as described
above.
Power During Fault Condition
Whenever the Home Generator System is in an
uncorrected fault condition, the automatic transfer switch
is reset to UTILITY POWER.This means that when utility
power is restored, utility power will be applied to the
essential circuit loads.The generator is disconnected from
the automatic transfer switch for the duration of any
detected fault condition.
/
17