EN / WHISPER 16 ULTRA Mobile / July 2004
25
Overload, choked air filter, inlet temperature
too high, unsuitable fuel or water in fuel.
Engine starts, but stops
• Protection system stops the engine;
Refer to paragraph 2.5.5. and 3.2.2 for
after 10 up to 30 seconds
this can be caused by oil pressure
information on the alarmsystem. Bypassing the
failure, lack of coolingwater
switches can help to identify the failure.
(exhaust temperature alarm)
Loose wire or faulty alarm switch.
Digital Diesel Control will help
to identify the failure.
Engine stops by itself.
• Overload or short circuit.
Switch off the consumers and test for short circuit.
• Lack of fuel.
Check fuel supply system: fuel lines, pump, filter,
valves, tank level, etc.
• Oil pressure low.(oil pressure switch
Check oil level.
tripped).
Check engine’s oil pressure and have it repaired
by Mastervolt.
• Excess heat in cooling system
Check cooling liquid level expansion tanks; water
(thermo-switch tripped).
pump: impeller: coolant flow.
• Impeller broken.
Check if radiator fans work properly and switch to
• Cooling water blocked.
higher speed. Air in piping system can block
circulation. Almost all problems of oeverheating
are caused by faulty installation: bents in the
routing of cooling pipes that captures airbubbles
(air locks) or hot air circulating back into the
radiators. Refer to installation manual.
• Air or water in the fuel.
Check and clean
• Blocked air or fuel filter.
• Loss of compression by wear out
Repair by Mastervolt service.
or damage.
• V-belt broken or loose
Readjust or replace V-belt.
• Thermostat faulty
Check thermostat and replace.
Sooty, black exhaust.
• Generator is being overloaded.
Check electrical load and switch off some
• Dislpay will indicate “overload”
consumers.
• Insufficient intake air.
Check intake air paths and filter, clean and
• Choked air filter.
replace if necessary.
• Fuel injector faulty.
Replace injector.
• Valve clearance incorrect.
Readjust valve clearance.
• Poor fuel quality.
Use better quality diesel.
• Poor quality lubricating oil.
Use better quality oil.
• Continuous running with very low load.
Increase load and have the engine run for a few
hours.
Loss of power
• Wrong measurement. 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
by using the exact values, taking into account the power factor of the consumers. When any
doubt measure the power directly with an appropriate instrument.
• Overfull oil sump.
Bring the oil to the correct level.
• Choked full filter.
Replace the fuel filter.
• Choked air filter.
Check air inlet openings; clean air filter.
• Exhaust blocked.
Check the exhaust system.
• Injector blocked.
Have the injectors checked.
• Loss of compression, sticking or
Have the compression measured.
damaged piston rings.
Clean or replace the rings.
• Wear out of cylinders.
Have the compression measured and have the
engine overhauled.
Over-temperature
• Overload.
Take away the overload.
TROUBLE SHOOTING
