Maintenance
Servicing the System
To service system:
1.Set the system switch to OFF.
2.Set the generator’s main circuit breaker to its OFF position.
3.Utility voltage is present. Disconnect power before servicing by removing the two 2 Amp fuses from the transfer switch.
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 temperature, over speed, and other conditions.
The generator’s control panel has a digital display that shows fault codes, like “FC_1”. The table below lists the detected fault, the fault code as displayed on the control panel, and the number of blinks seen on the remote LED indicator.
Fault Description | Fault Codes | LED Flashes |
Low battery voltage | FC_1 | 1 |
Low oil pressure | FC_2 | 2 |
Low voltage | FC_3 | 3 |
Engine fails to start | FC_4 | 4 |
Low frequency | FC_5 | 5 |
Engine overspeed | FC_6 | 6 |
High temperature | FC_7 | 7 |
Transfer switch fault | FC_8 | 8 |
The remote LED indicator is installed at a convenient inside location. The LED will remain lit when the generator is in AUTO. The LED will turn on and off in a series of blinks that correspond to the fault detected in your home generator. The blink pattern is repeated with a brief pause between each series of blinks.
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. Remedy the fault condition, then return the home generator to service by placing the system switch in the AUTO position.
A description of each fault and suggested remedies are as follows:
No LED - Discharged Battery
If there is a detected fault condition but the LED is not blinking, this is because the battery is completely discharged. 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. Then install the 15 Amp fuse in the control panel.
NOTE: With the battery installed, all wiring to transfer switch and home generator completed, utility power supplied to the Automatic Transfer Switch, and the system switch in AUTO position, the battery receives a trickle charge while the engine is not running. The trickle charge is not able to recharge a battery that is completely discharged. See Battery in Maintenance.
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 battery charge circuit.
To remedy the problem, contact your local service center to check the battery 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 ONLY with same type battery as described in Battery in Installation.
Replace the battery after it has been fully recharged, connecting the NEGATIVE cable last. Then install the 15 Amp fuse.
Low Oil Pressure
This fault is indicated by fault code FC_2 and two blinks on the remote LED indicator. The unit is equipped with an oil
pressure switch (A). |
A |
The oil pressure switch uses 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.
To remedy the low oil pressure condition, add the recommended oil to the FULL mark on the dipstick.
If the low oil pressure condition still exists, the engine will start, then shut down after about 20 seconds. The fault code will appear and the LED will flash. In this case, contact a Briggs & Stratton Authorized Dealer.
22 | BRIGGSandSTRATTON.COM |
