Section 4 - Maintenance; Fuse; Checking The Engine Oil Level - Generac Guardian Serie Manuel Du Propriétaire

Over Speed (Shutdown Alarm)
4320 RPM for three (3) seconds or 4500 RPM immediately. This
feature protects the generator from damage by shutting it down
if it happens to run faster than the preset limit. This protection
also prevents the generator from supplying an output that could
potentially damage appliances connected to the generator circuit.
Contact the nearest Dealer if this failure occurs.
RPM Sense Loss (Shutdown Alarm)
During cranking, if the Control Board does not see a valid RPM
signal within three (3) seconds, it will shut down and lock out on
RPM sense loss. While engine is running, if RPM signal is lost for
one (1) second the Control Board will shut the engine down, wait
15 seconds, then re-crank the engine. If no RPM signal is detected
within the first three (3) seconds of cranking, the Control Board
will shut the engine down and latch out on RPM sensor loss. If the
RPM signal is detected, the engine will start and run normally. If
the RPM signal is subsequently lost again, the Control Board will
try one more re-crank attempt before latching out and displaying
the RPM sensor failure message.
Under-frequency (Shutdown Alarm)
After starting, if the generator stays under frequency for more than
30 seconds it will shut down. The under-frequency setting is 50
Hz.
Internal Fault (Shutdown Alarm)
This alarm cannot be cleared, call service dealer.
CLEAR ALARM
• 8kW — Clear the alarm by setting the AUTO/OFF/MANUAL
switch to the OFF position and back to AUTO.
• 10 - 20kW — Clear the alarm by setting the AUTO/OFF/MANUAL
switch to the OFF position. Press the ENTER key to unlatch any
active fault and clear the corresponding alarm message.
3.6.2 WARNINGS
Second Priority (Non-latching) Displayed on the control panel
and the external yellow LED (V-twins only). Warnings automati-
cally clear when the monitored condition goes away. Warnings are
recorded in the alarm log. Warnings cannot cause shutdowns.
Low Battery
The Control Board monitors battery voltage and displays a warn-
ing if the battery voltage falls below 11.0 volts for one (1) minute.
Warning is automatically cleared if the battery voltage rises above
11.0 volts. Battery voltage is not monitored during the crank
cycle.
Exercise Set Error
If the exercise period becomes corrupted, a warning message
will be displayed. This message will only clear when the exercise
period is reset.
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Section 4 — Maintenance
Air-cooled Generators
3.6.3 MAINTENANCE ALERTS (10 - 20KW ONLY)
Third priority
Maintenance Message
When a maintenance period expires, a warning message will be
displayed. (16 through 20kW models include an external yellow
LED which will illuminate.) The alert can be reset by pressing the
Enter key, which will cause the user to be prompted to confirm
the action. Resetting will clear the alert and reset the maintenance
counters for all conditions annunciated. The history log will record
the alert. The maintenance counter will not accumulate without
battery power. Once battery power is restored, the set time prompt
will be displayed. The maintenance counters will be adjusted to the
new time and date.
Since most maintenance alerts will occur at the same time
(most have two (2) year intervals), only one will appear on the
display at any one time. Once the first alert is cleared, the next
active alert will be displayed.
4.1

FUSE

The 7.5 amp fuse on the control panel protects the DC control
circuit against overload (Figures 3.1 and 3.2). This fuse is wired
in series with the battery output lead to the panel. If this fuse ele-
ment has melted open, the engine will not be able to crank or start.
Replace this fuse using only an identical 7.5 amp replacement
fuse. Whenever the fuse is removed or replaced, the exercise timer
needs to be reset.
4.2 CHECKING THE ENGINE
OIL LEVEL
For oil capacities, see the Specifications section. For engine oil
recommendations, see the Engine Oil Recommendations section.
When power outages necessitate running the generator for extend-
ed periods of time, the oil level should be checked daily.
To check the engine oil level, proceed as follows (Figures 4.1, 4.2
and 4.3):
1. If the generator is running during a utility outage, first turn OFF
all associated loads running in the residence. Second, turn the
generator's main circuit breaker to the OFF position.
2. Move the AUTO/OFF/MANUAL switch to the OFF position.
3. Remove the dipstick and wipe it dry with a clean cloth.
4. Completely insert the dipstick; then, remove it again. The oil
level should be at the dipstick "Full" mark. If necessary, add
oil to the "Full" mark only. DO NOT FILL ABOVE THE "FULL"
MARK.

Never operate the engine with the oil level
below the "Add" mark on the dipstick. Doing this
could damage the engine.
NOTE: