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2
Test 3 - Check 50 Amp Battery Fuse
1. Inspect the 50 Amp fuse in Wire #13
located close to the starter motor
(Figure 10,A).
Figure 10
• If the fuse is good, proceed to TEST 4 -
Check Trickle Charge Voltage at Pin
#1.
• A blown fuse indicates a short in the
circuit. Inspect the circuit and repair
any shorts. Replace fuse.
TEST 4 - Check Trickle Charge Voltage at Pin
#1.
1. Ensure UTILITY power is turned ON to the
transfer switch.
2. Set SYSTEM switch to OFF.
3. Remove the 15 Amp fuse from the system
control panel.
4. Make sure Wire #13 is reinstalled to the
positive (+) battery cable at the starter
motor and the 50 Amp fuse is installed in
Wire #13.
5. Gain access to the control panel.
SEE HOW TO ACCESS THE CONTROL PANEL ON
PAGE 17.
6. Set meter to measure DC Voltage.
Connect positive (+) meter test lead to Pin
#1, Wire #13 (Figure 11).
Figure 11
7. Connect negative (-) meter test lead to
negative (-) battery terminal.
• If battery voltage is measured, proceed
to Step 8.
• If no battery voltage is measured,
proceed to TEST 8 - Check ECU
Fuse.
8. Reinstall the 15 Amp fuse in the system
control panel. After a few seconds, meter
should measure trickle charge voltage
around 13.5 VDC.
9. While observing the meter and keeping
the positive (+) meter test lead connected
to Pin #1, Wire #13, remove the 50 Amp
battery fuse in Wire #13, located near the
starter motor. The trickle charger will stay
on long enough to read the trickle charge
output voltage on the meter, but trickle
charge voltage will diminish quickly.
• If 13.5 VDC is measured at Pin #1,
Wire #13, but not at the positive (+)
battery connection, proceed to TEST 5
- Check 240 VAC Across Wire #92 &
#93.
• If no voltage in measured at Pin #1,
Wire #13, proceed to TEST 8 - Check
ECU Fuse.
TEST 5 - Check 240 VAC Across Wire #92 and
Wire #93.
1. Remove the 15 Amp fuse from the system
control panel.
2. Gain access to the system control panel.
3. Verify Utility Voltage is ON.
SEE HOW TO ACCESS THE SYSTEM CONTROL
PANEL ON PAGE 17 .
WARNING
Utility voltage is present at the system
contol panel board.
Use caution to avoid personal electrical shock
or damage to the system.
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