Whisper Power W-GV/2 User Manual page 24

TROUBLESHOOTING
PROBLEM
Engine starts, but stops after 10 up
to 30 seconds
Engine stops by itself
Loss of power
Over-temperature
24
CAUSE
 Continuous running with very low load.
 Protection system stops the engine; this
can be caused by oil pressure failure,
loose wire or faulty alarm switch. Digital
Diesel Control will help to indicate
failure.
 Faulty alarm switch/sensor
 Overload or short circuit
 Lack of fuel
 Coolant temperature too high (>105°C)
 Oil pressure low (oil pressure switch
tripped)
 Air or water in the fuel.
 Blocked air or fuel filter.
 Loss of compression by wear out or
damage.
 Wrong measurement.
 Oil level too high
 Choked fuel filter
 Choked air filter
 Exhaust blocked
 Injector blocked
 Loss of compression, sticking or damaged
piston ring
 Wear out of cylinder
 Overload.
 Radiator choked by dirt
 Hot air circulation in the radiator.
 Exhaust choked with carbon
 Cooling circuit failure
W-GV/2, W-GV/3, W-GV/3+, W-GV 8, W-GV 10 and W-GV 15 — June 2017 — EN
SOLUTION
Increase load and have the engine run for a few
hours
Refer to Chapter 3 and page 24 and the DDC
operating manual for information on the alarm
system. Bypassing a switch can help to confirm the
failure. But be aware: running with a by-passed
alarm switch can cause damage!
Replace the switch. By-passing the switch makes it
possible to keep running. But be aware: running
with a by-passed alarm switch can cause damage!
Switch off the consumers and test for short circuit.
Check fuel supply system: tank level, fuel lines,
pump, filter, valves, etc.
Check cooling system
Check oil level
Check oil pressure and have engine repaired by
WhisperPower if necessary.
Check and clean
Repair by WhisperPower service.
Check if the load is measured correctly. Does the
Amp meter show the correct value? When
calculating the load by multiplying voltage and
amps this should be done using the exact values,
taking into account the power factor of the
consumers. When in doubt, measure the power
directly using an appropriate instrument.
Drain oil to the correct level
Replace the fuel filter
Check air inlet openings; clean air filter
Check the exhaust system
Have the injector checked
Have the compression measured
Clean or replace the rings
Have the compression measured and have the
engine overhauled
Reduce the load
Clean radiator
Clean exhaust
Contact WhisperPower service