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ENGINE TROUBLESHOOTING·
PROBLEM
PROBABLE CAUSE
VERIFJCAnON,IREMEDY
Preheat depressed
1. Poor ground.
1. Check good ground thru mounting bracket.
Preheat solenoid does not activate. 2. No voltage at "S" terminal.
2. Check for voltage, jump -voltage to "S". Check
circuit.
3. Faulty solenoid.
3. Replace solenoid.
Preheat depressed
1. Open diode. TB2-2 to TB2-6.
1. Check diode/replace.
Preheat solenoid activates.
2. Fau!Jty K2 relay.
. 2. TesVreplace.
No panel or fuel solenoid
activation.
Preheat depressed.
1. Faulty current timer.
1. Test/replace.
Preheat solenoid, panel, fuel pump 2. Faulty fuel solenoid.
2. TesVreplace.
activate. No fuel solenoid activation.
.
Preheat depressed.
1.
Faulty ground.
1. Check ground circuit.
Preheat solenoid, panel, fuel
2. No voltage to fuel pump.
2. Check voltage circuit.
solenoid activate. No fuel
3. Faulty pump.
3. Test pump. Jump voltage to pump. Replace.
pump activation.
Preheat depressed.
1. Battery off.
1. Check/turn on.
Nothing activates.
2. 20 amp DC breaker off.
2. Check/turn on.
3._
7.6 amp fuse blown.
3. Check/replace.-
Start depressed.
1. Faulty K1 relay.
1. TesVreplace.
No starter activation.
2. No voltage
at
solenoid activation
2. Check voltage 9.6 volts or better. Check
terminal or low voltage.
circuit/charge battery.
'
3.
Faulty starter solenoid.
3. TesVreplace.
4. Faulty starter.
4. TesVreplace.
Start depressed.
1. Faulty current timer.
1. TesVreplace.
Unit starts, shuts down when
2. Faulty fuel solenoid.
2. Test/replace.
start released.
Unit starts, shuts down when
1. Faulty safety shutdown switch.
1. Check switches. Replace as needed.
preheat release, stays running .
while preheat depressed.
Generator drive engine
1. Faulty fuel pump.
1. Test/replace.
slows and stops.
2. Air in fuel system.
2. Test system/correct.
3. Block tank vent.
3.
Check/clear blockage.
4. Co_ntaminated fuel filter(s).
4. Check/replace.
Stop depressed. Engine will not
1. Faulty DC alternator.
1.
Un-plug "R" terminal. Depress stop, shut down
(Manual shut off must be used).
Repair/replace alternator.
20 amp breaker turned OFF
1. Faulty K2 relay.
1. TeSVreplace.
unit stops.
2.
Faulty fuel solenoid.
2.
Test/replace.
DC alternator not charging.
1. Drive belt.
1. Check tension/replace.
2. Regulator circuit.
2. Check excitation DC voltage at "R" terminal.
Correct.
3.
Faulty alternator.
3. Repair/replace.
l"ff'V"iWESTERBEKE
Engines &
Generators
. . -- 18
. .
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Table of Contents
Troubleshooting
