Briggs & Stratton Power Products Home Generator System
Owners Manual
MAINTENANCE
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.
A light on the generator's control panel is called the Diagnostic LED. A similar LED indicator is installed at a convenient inside location. Both LED's will turn on and off in the same series of blinks if certain problems are detected in your HGS.The blink pattern is repeated with a brief pause between each series.The number of blinks in the series indicates the detected fault, as listed near the control panel, on the mounting plate and below:
Number of LED Flashes | Fault Description |
1 | Low battery voltage |
2 | Low oil pressure |
3 | Low voltage |
4 | Engine fail to start |
5 | Low frequency |
6 | Engine overspeed |
7 | Oil temperature high |
Reset Fault Detection System
The operator must reset the fault detection system each time it activates.To do so, place the AUTO/OFF/MANUAL switch in the OFF position for 30 seconds or more. Return the Home Generator System to service after correcting the problem by placing the AUTO/OFF/MANUAL switch in the AUTO position.
A description of each fault and suggested remedies are as follows:
Low Battery Voltage
This fault is indicated by one blink.This condition occurs if the generator cannot start because the starting battery output power is below that needed to
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 in the battery compartment after it has been fully recharged, connecting the NEGATIVE cable last. Install the 15 Amp fuse. Reset the Fault Detection system as described above. Check battery trickle charge output.
Low Oil Pressure
This fault is indicated by two blinks.The unit is equipped with an oil pressure switch (Figure 5) using normally closed contacts that are held open by engine oil pressure during operation. Should oil pressure drop below the 8 psi range, switch contacts close and the engine is shut down.
Figure 5 — Low Oil Pressure & High Temp. Switches
| High |
| Temperature |
Oil | Switch |
Pressure |
|
Switch |
|
| Oil Drain |
| Fitting |
No Blinks - ‘Dead’ Unit
This condition is caused by a completely dead starting 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 in the battery compartment after it has been fully recharged, connecting the NEGATIVE cable last. Install the 15 Amp fuse. Reset the Fault Detection system as described above.
To remedy the low oil pressure condition, fix any obvious oil leak and/or add the recommended oil to the FULL mark on the dipstick. Reset the Fault Detection system as described above.
If low oil pressure condition still exists, engine will start, then shut down after about 10 seconds and diagnostic LED will flash. In this case, contact an authorized service facility.
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