Winco ULPSS20B4W/A - Manual (Page 17)

7 20-00 60706-228
TROUBLESHOOTING
TABLES
********************
****** WARNING ******
********************
NEVER JUMP START THESE UNITS.
JUMP STARTING THESE UNITS WITH
LOW OR BAD BATTERIES WILL CAUSE
PERMANENT DAMAGE TO THE ENGINE
CONTROL MODULE.
UNIT WILL NOT CRANK WHEN THE POWER
FAILS
. Right generator control toggle switch not in
“AUTO” position.
2. Low or dead battery, must hold 2 volts during
cranking.
3. Incorrect wiring between transfer switch and
generator.
4. Loose or dirty battery terminals.
5. Defective “ON/OFF” switch.
6. Defective starter.
7. Defective start solenoid.
8. Defective start/stop control in the transfer
switch.
9. ATS panel in fault from previous run cycle.
0. Blown 3/4 amp fuse on generator control
panel.
. Blown 0 amp fuse on generator control
panel.
2. Defective starter/fuel solenoid relay(s).
ENGINE WILL NOT CRANK USING THE AUTO/
RUN/START SWITCH IN GENERATOR
. Low or dead battery, must hold 2 volts during
cranking.
2. Blown 3/4 amp fuse on generator control
panel.
3. Blown 0 amp fuse on generator control panel.
4. Loose or dirty battery terminals.
5. Defective “AUTO/RUN/START” switch.
6. Defective starter.
7. Defective start solenoid.
8. Locked up engine generator set.
9. Defective starter/fuel solenoid relay(s).
ENGINE CRANKS BUT WILL NOT START
. Improper fuel pressure being delivered to unit.
2. Fuel supply shut off.
3. Fuel supply empty.
4. Defective spark plug.
5. Defective engine ignition module.
6. Dirty air cleaner filter.
7. Defective fuel solenoid valve.
8. Low voltage from battery to fuel solenoid, must
hold 2 volts during cranking.
9. Oil in the bottom of air cleaner from crankcase
breather.
0. Defective starter/fuel solenoid relay(s).
ENGINE STARTS AND THEN STOPS AND FAULT
LIGHT COMES ON
. Engine is low on oil.
2. No AC output from generator to engage stop
crank circuit.
ENGINE WILL NOT COME UP TO SPEED AFTER
IT STARTS
. Insufficient fuel volume getting to the unit.
a. Fuel line too small.
b. Low fuel pressure.
2. AC short circuit.
3. Wiring to the ATS panel crossed or shorted.
4. Unit is overloaded. Check load amperage.
ATS PANEL WILL NOT TRANSFER TO EMER-
GENCY SUPPLY (GENERATOR)
. No AC generator output from generator.
2. See Automatic Transfer Switch Manual.
ATS PANEL WILL NOT PULL IN ON NORMAL
POWER
See Automatic Transfer Switch Manual
NO AC OUTPUT FROM GENERATOR
. Defective Diodes.
2. Defective Voltage Regulator.
3. Defective rotor.
4. Defective stator.
5. Defective exciter rotor.
6. Defective exciter stator.
7. AC short in the output leads.
6. Defective / Open Circuit Breaker
7. Wiring error.