Generac Power Systems 8 kW LP - Manual (Page 146)

Page 144
10. Connect one meter test lead to Wire 18 removed from
the stud connector. Connect the other meter test lead to
a clean frame ground. INFINITY should be measured.
If CONTINUITY is measured, repair or replace Wire 18
between the stud connector and the J1 Connector.
RESULTS:
Refer to flow chart.
PROCEDURE: (SINGLE CYLINDER)
1. Set a VOM to measure resistance.
2. Remove Wire 18 from the in-line bullet connector.
Disconnect the J1 Connector from the printed circuit
board.
3. Verify the continuity of Wire 18. Connect one meter test
lead to Wire 18 removed from the stud connector or
bullet connector. Connect the other meter test lead to
Pin Location J1-4. CONTINUITY should be measured.
If CONTINUITY is not measured, repair or replace Wire
18 as needed.
RESULTS:
Refer to flow chart.
teSt 79 – teSt eXerciSe Function
DISCUSSION:
The following parameters must be met in order for the
weekly exercise to occur:
• AUTO-OFF-MANUAL switch set to AUTO.
PROCEDURE: 8kW
1. Set the AUTO-OFF-MANUAL switch to MANUAL. The
generator should start. Set AUTO-OFF-MANUAL switch
back to AUTO. Verify that AUTO-OFF-MANUAL switch
has been in AUTO for weekly exercise to function.
2. Hold the Set Exercise switch until the generator starts
(approximately 10 seconds) and then release. All of
the red LEDs will flash for approximately 10 seconds
and then stop. The generator will start and run for
approximately 12 minutes and then shutdown on it’s
own. The exerciser will then be set to start and run at
that time of that day each week. If the unit does not
start, replace the circuit board.
PROCEDURE: 10kW-20kW
note: make a record of the date and time the
generator is set to exercise.
1. Record the current date and time of the unit.
2. Press the “ESC” key till the main menu is displayed.
3. Press the right arrow key till a line is present under “EDIT”.
4. Press “Enter”.
5. Press the right arrow key until “EXERCISE TIME/DAY” is
displayed.
6. Press “Enter”.
DATE AND TIME
MAIN
MENU
EDIT
READY TO RUN
1 2 / 1 0 / 0 8 0 9 : 3 0 M o n
Figure 47. The Date and Time, and Main Menu
Screens
7. Adjust exercise time to about 3 to 4 minutes ahead of
the date and time noted in Step 1.
8. Press “ESC” until “READY TO RUN” is displayed. The
AUTO-OFF-MANUAL switch must be in AUTO for the
unit to exercise.
9. Watch the generator display and note the time. When the
date and time reaches the time that was programmed
for exercise, the unit will display "Running in Exercise" if
the exercise feature is working properly.
RESULTS:
1. In all models, if the unit starts in MANUAL, but fails to
exercise without any ALARMS present, replace the
printed circuit board.
teSt 80 – check crankinG and runninG
circuitS
DISCUSSION:
This test will check all of the circuits that are “HOT”
with battery voltage and which could cause the Main
Fuse to blow.
Part 4 DC CONTROL
sEctioN 4.4
DiaGNostic tEsts