Briggs & Stratton 040204 EU - Manual (Page 15)

MAINTENANCE
15
FAULT DETECTION SYSTEM
The generator may have to run for long periods of time with
no operator present. For that reason, the system is equipped
with sensors that automatically shut down the generator in
the event of potentially damaging conditions, such as low oil
pressure, high oil temperature, over speed, and other
conditions.
The generator's control panel has a digital display to show
fault codes. An extra LED indicator is installed at a
convenient inside location. The LED will turn on and off in a
series of blinks if certain problems are detected in your HGS.
The blink pattern is repeated with a brief pause between each
series. The fault code as shown on the control panel, and the
number of blinks on the mounting plate, indicates the
detected fault and as follows:
Fault Codes / LED Flashes Fault Description
FC_1 / 1 Low battery voltage
FC_2 / 2 Low oil pressure
FC_3 / 3 Low voltage
FC_4 / 4 Engine fail to start
FC_5 / 5 Low frequency
FC_6 / 6 Engine overspeed
FC_7 / 7 Oil temperature high
FC_8 / 8 Transfer switch fault
Reset Fault Detection System
The operator must reset the fault detection system each time
it activates. To do so, place the system switch in the OFF
position for 5 seconds or more. Return the Home Generator
System to service after correcting the problem by placing the
system switch in the AUTO position.
A description of each fault and suggested remedies are as
follows:
No LED - Discharged Battery
This condition is caused by a completely discharged battery.
To remedy the problem, remove the 15 Amp fuse and
disconnect the battery from the generator. Take the battery to
a local battery store for analysis.
Replace the battery after it has been fully recharged,
connecting the NEGATIVE cable last. Install the 15 Amp fuse.
Low Battery Voltage
This fault is indicated by fault code FC_1 and one blink on
the LED indicator. This condition occurs if the generator
cannot start because the starting battery output power is
below that needed to crank the engine. Causes for this
problem may be a faulty battery or trickle charger circuit.
To remedy the problem, contact your local service center to
check the battery trickle charge output. Remove the 15 Amp
fuse and disconnect the battery from the generator. Take the
battery to a local battery store for analysis.
Replace the battery after it has been fully recharged,
connecting the NEGATIVE cable last. Install the 15 Amp fuse.
Low Oil Pressure
This fault is indicated by fault code FC_2 and two blinks on
the LED indicator. The unit is equipped with an oil pressure
switch (Figure 4) using normally closed contacts that are
held open by engine oil pressure during operation. Should oil
pressure drop below a preset range, switch contacts close
and the engine is shut down.
Figure 4 — Low Oil Pressure & High Temp. Switches
High
Temperature
Switch
Oil Drain
Fitting
Oil
Pressure
Switch
High
Temperature
Switch
Oil Drain
Fitting
Oil
Pressure
Switch
15kW
12kW