TROUBLE SHOOTING
30 July 2009 / WHISPER 6/8/11 / US / Copyright © 2009 Mastervolt
Problem Possible cause What to do?
• Choked air filter.
Check air inlet openings; clean air filter.
• Exhaust blocked.
Check the exhaust system.
• Injector blocked.
Have the injector checked.
• Loss of compression, sticking or
damaged piston ring.
Have the compression measured.
Clean or replace the rings.
• Wear out of cylinder.
Have the compression measured and have the
engine overhauled.
• Overload.
Take away the overload.
• Low level of cooling oil or air in the
cooling system
Fill up with liquid and release air bubbles.
Check if there are air blocks in the system;
refer to the installation manual
• Water inlet system blocked.
• Broken impeller.
• Water strainer choked
• Heat exchanger choked.
Check the cooling system thoroughly.
• Broken or slipping V-belt.
Replace and adjust the V-belt tension.
Over-temperature
• Faulty thermostat
Check the thermostat or replace.
5.2.3 Warnings
Generator must be shut off immediately if:
● Motor RPM suddenly rises or drops.
● Unusual noise comes from generating set.
● Exhaust gases suddenly colour dark.
● Engine failure warning light is on
5.2.4 Service address
If you cannot correct a problem with the aid of the mal-
function table, contact your Mastervolt Service Centre or
Mastervolt Amsterdam for an extended service list, tel: INT
+31-20-3422100.
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