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.
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.
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.
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 the 8 psi range, switch contacts close and the engine is shut down.
Figure 4 — Low Oil Pressure & High Temp. Switches
| High |
| Temperature |
Oil | Switch |
Pressure |
|
Switch |
|
Oil Drain |
|
Fitting |
|
To remedy the low oil pressure condition, add the recommended oil to the FULL mark on the dipstick.
If low oil pressure condition still exists, engine will start, then shut down after about 20 seconds and diagnostic LED will flash. In this case, contact an authorized service facility.
14