TROUBLE SHOOTING
EN / WHISPER 3,5 / May 2006
23
PROBLEM CAUSE
SOLUTION
•
Disturbances on the electrical system/
user side.
Check if electrical load is fluctuating
Generator voltage fluctuates.
•
Engine runs irregularly.
When engine runs irregularly refer to section:
"Engine runs irregularly".
Generator is not able to start an
electric motor
If the generator is unable to supply
enough power to start an electric
motor (230V), this is usually
because this motor draws too much
current during starting
Check the electric motor’s current draw
required for starting. This should not exceed
70% of the rated generator output current. This
could be remedied by providing stronger
capacitors to the motor or using a "soft-start".
Inquire at your nearest Mastervolt dealer or
directly at the manufacturer, Mastervolt in the
Netherlands.
5.2 ENGINE
FAULTS
Remove 3 Amp. fuse in the control panel
while working on the generator to prevent the
engine from starting.
5.2.1 General
Most electrical problems relating to Voltage or Frequency
are due to wrong engine speed.
Note that RPM and Hz are basically the same.
Use the problem solving table to find the cause. When
there is no obvious cause one can adjust the RPM (refer
to special procedures). The Digital Diesel Control system
will help to indicate failures and display causes.
When the engine is not cranking well starting problems
almost always originate from battery problems or poor
battery cable connections. When the engine is cranking,
well starting problems almost always originate from lack of
fuel or air bubbles in the fuel pipes.
When the engine does not start instantly, prolonged
cranking can fill up the exhaust system with cooling water
because of the water injected exhaust. When the water
enters the cylinder through the valves this will bring severe
damage to the engine. When the engine does not start
and repeated cranking is necessary shut off the seawater
inlet. Open the valve immediately after the engine has
started.
A failure code is displayed when a hardware failure at the
generator is detected.
failure code
problem
COMMUNICATION
Communication error between the
panel end the generator
LOW START BAT
Starter battery voltage too low
ALTERNATOR
No output battery charging voltage
EXHAUST TEMP
Exhaust temperature is too high
WATER TEMP
Coolant temperature is too high
OIL PRESSURE
Oil pressure failure
LOW VOLTAGE
Generator AC output voltage is too low
HIGH CURRENT
generator is in overload
FREQUENCY
output frequency of the generator is too
low
5.2.2
Trouble shooting table
PROBLEM CAUSE
SOLUTION
•
Almost certainly this is an electrical
problem or the engine is locked by
water in the cylinder or there is other
severe damage. Display will indicate
low battery voltage.
Check on water in the cylinder and further
damage by cranking while lifting the valves
with the decompression handle. When there is
water in the cylinder, then deactivate the
control system, disconnect the battery, remove
the glow plug. Crank the engine to remove the
water through the opening of the glow plug.
Check oil on the presence of water and
change oil. Find out how the water entered the
cylinder (check the air vent). Take precautions
to prevent it from happening again. When
there is no mechanical malfunction the
problem must be an electric malfunction.
Diesel engine fails to crank, the
starter makes clicking noises, or
the engine cranks very slowly
•
Starter battery switched "OFF".
Check position of the battery switch and switch
"ON".