Winco PSS75LS/D - Manual (Page 14)

Page 12 7263-00 60706-187
TROUBLESHOOTING TABLES
UNIT WILL NOT CRANK WHEN THE POWER FAILS.
1. Digital Genset Controller not in "AUTO"
2. Transfer control switch not in "AUTOMATIC"
position.
3. Incorrect wiring between transfer switch and
generator.
4. Defective start stop relay in the transfer
switch.
5. Circuit breaker tripped on Digital Genset Controller.
6. Defective Digital Genset Controller
7. Loose or dirty battery terminals.
8. Defective "Run/Auto" switch on generator or
transfer switch.
9. Defective starter.
10. Defective start solenoid.
ENGINE WILL NOT CRANK WITH GENERATOR
RUN PUSH-BUTTON DEPRESSED.
1. Battery dead.
2. DC circuit breaker for Digital Genset Controller
tripped.
3. Defective Digital Genset Controller.
4. Loose or dirty battery terminals.
5. Defective "Run/Auto" switch on generator.
6. Defective starter.
7. Defective start solenoid.
8. Locked up engine genset.
ENGINE CRANKS BUT WILL NOT START
1. Improper fuel pressure being delivered to
unit.
2. Fuel supply shut off.
3. Fuel tank empty.
4. Defective spark plug.
5. Defective engine ignition module.
6. Dirty air cleaner filter.
7. Defective fuel solenoid valve.
8. Low battery.
9. Defective fuel regulator
ENGINE STARTS AND THEN STOPS AND ALARM
LIGHT COMES ON
1. Engine is low on oil.
2. Engine has high water temperature.
3. Engine has overspeed.
4. Engine has gone into overcrank.
5. No output from engine alternator to engage
stop crank circuit.
ENGINE WILL NOT COME UP TO SPEED AFTER IT
STARTS
1. Insufficient fuel volume getting to the unit.
a.
Too small of fuel line.
b. Fuel pressure too low/high.
2. Fuel load block needs to be adjusted.
3. Governor is defective.
4. AC short in generator components.
ATS PANEL WILL NOT TRANSFER TO EMERGENCY
SUPPLY (GENERATOR)
1. No AC generator output from generator.
2. Broken or defective mechanical/electrical
interlocks.
3. Defective holding coil in the generator side
contactor.
4. Wiring error between generator and transfer
switch.
5. Defective start/stop relay
ATS PANEL WILL NOT RETRANSFER TO NORMAL
POWER
1. Proper normal line power not available at line
terminals in ATS panel.
2. Defective holding coil in line side contactor.
3. Broken or defective mechanical/electrical
interlocks.
4. Defective start/stop relay
NO AC OUTPUT FROM GENERATOR
1. Defective diode.
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.
8. Defective field circuit breaker.
NG/ LP CONVERSION
**** CAUTION ****
EQUIPMENT DAMAGE - Do not make any fuel adjustments or
governor adjustments until all pressure readings are in compli-
ance with specification. See fuel pressure charts (tables 1, 2,
and 3).
The engine generator sets covered in this manual are shipped for
a specific fuel, either Liquid Propane (LP) vapor or Natural Gas
(NG). If it should be necessary to change the type of fuel used
after a unit is received, you will need to contact the WINCO
Service Department at 507-357-6831. The same thing holds true
if you are making a conversion to/from liquid withdrawal LP,
consult the factory. Additional parts will be required for any fuel
conversion .