OPERATION
Number of LED Flashes | Fault Description |
2 | Low oil pressure |
4 | Engine failed to start |
5 | Low frequency |
6 | Engine overspeed |
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 Standby Generator 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:
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.
Install the battery after it has been fully recharged or replaced, connecting the NEGATIVE cable last. Install the 15 Amp fuse.
WARNING
Battery posts, terminals and related accessories contain
lead and lead compounds - chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling.
Low Oil Pressure
This fault is indicated by two blinks. The generator is equipped with an oil pressure switch (Figure 11). Should oil pressure drop, switch contacts close and the engine is shut down.
Figure 11 — Low Oil Pressure
Oil Pressure Switch |
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, generator will start, then shut down after approximately 10 seconds and diagnostic LED will flash. In this case, contact your local service center.
Engine Fail To Start
This fault is indicated by four blinks. This feature prevents the generator from damage by continually attempting to start. Each time the system is directed to start, the generator will crank for 15 seconds, pause for 15 seconds, crank for
15 seconds, pause for 15 seconds, and repeat. If the generator does not begin producing electricity after approximately 90 seconds, the generator will stop cranking and the LED will blink.
The most likely cause of this problem is no fuel supply. Check the inside and outside fuel shut off valves to ensure they are fully open. Other causes could be failed spark plug, failed engine ignition, or the engine air filter is clogged. You may need to contact your local service center for assistance if you can’t remedy these problems.
Low Frequency
This fault is indicated by five blinks. This feature protects devices connected to the transfer switch by shutting the generator down if the engine runs slower than the preset limit.
This condition may be potentially caused by a failed engine governor. To remedy the problem, you should contact your local service center for assistance.
This condition may also be potentially caused by excessive loads on the generator. Turn off devices one at a time and check the frequency. To remedy the problem, you may need to contact your local service center for assistance.
Engine Overspeed
This fault is indicated by six blinks. This feature protects devices connected to the transfer switch by shutting the generator down if the engine happens to run faster than the preset limit. The overspeed fault is detected as follows:
•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 down immediately.
This condition is potentially caused by a failed engine governor. To remedy the problem, you should contact your local service center for assistance.
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