Mastervolt WHISPER 3,5 User Manual

USA / WHISPER 3,5 / April 2004 23
TROUBLE SHOOTING
Generator is not able to start If the generator is unable to supply enough Check the electric motor’s current draw required
an electric motor. power to start an AC electric motor, for starting. This should not exceed the
this is usually because this motor draws rated generator peak output current. This could be
too much current during starting. 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.
5.2.2 Trouble shooting check list engine
PROBLEM CAUSE SOLUTION
Diesel engine fails to crank, Almost certainly this is an electrical problem Check on water in the cylinder and further
the starter makes clicking or the engine is locked by water in the damage by cranking while lifting the valves with
noises, or the engine cranks cylinder or there is other severe damage. the decompression handle. When there is water
very slowly. Display will indicate “low battery voltage” 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 presen-
ce 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.
• Starter battery switched "OF". Check position of the battery switch and switch
"ON".
• Starter battery voltage insufficient Check battery voltage. Recharge the battery.
(battery too weak). Inspect battery terminals and cables for a good
electrical connection (inspect against corrosion,
tattered wires, etc.)
• Faulty fuse on control panel. Replace fuse.
5.2 ENGINE FAULTS
Remove 3 Amp. fuse in the control panel
while working on the generator to prevent
the engine to start.
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).
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 whe a hardware faillure 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

Mastervolt WHISPER 3,5 Specifications

General

Brand	Mastervolt
Model	WHISPER 3, 5
Category	Inverter
Language	English