TROUBLESHOOTING
22
M-GV/2, M-GV/3, M-GV/3+, M-GV 8, M-GV 10, M-GV 12 and M-GV 15
Ͷ
May 2018
Ͷ
EN
PROBLEM
CAUSE
SOLUTION
x
Fuel solenoid is not op
ĞŶŝŶŐ ;ŶŽ ͞ĐůŝĐŬ͟
can be heard)
Check wire connections and circuitry to solenoid.
(Refer to DC wiring diagram)
x
Fuel lift pump is not working
Check fuel filter and fuel lift pump: clean or replace
if necessary
x
Air in fuel lines
Bleed air from fuel system (refer to maintenance
section)
x
Blocked injector
Have the injector tested and cleaned if necessary
x
Wrong valve clearance
Adjust valve clearance
x
Low compression because of dirty valves
Contact WhisperPower service department for
advice
x
Loss of compression by wear out or
damage
Repair by WhisperPower service
Starter is turning engine smoothly,
but engine runs irregularly after
starting
x
Faulty glow plug
Replace faulty glow plug. Consider replacing both
or all three taking into account the number of
starts completed.
Engine runs irregularly
x
Unsuitable or contaminated fuel
x
Lack of fuel
Fill up with fuel or replace by better quality
x
Air in the fuel pipes
Bleed air from fuel system (refer to maintenance
section)
x
Choked fuel filter
Check fuel filter and replace if necessary
x
Disturbances on the electrical system/
user side
Check if electrical load is fluctuating
x
Faulty fuel lift pump
Check and repair or replace
x
Choked air filter
x
Lack of air
Check the air intake
x
Choked exhaust system, exhaust blocked
Check the exhaust piping, inspect inside of
manifold
x
Faulty actuator
Replace faulty parts. Contact WhisperPower
service department for advice.
x
Blocked injector
Have the injector tested and cleaned if necessary
x
Wrong valve clearance
Adjust valve clearance
x
Lack of fuel
Check fuel supply system: fuel pump and filter
Engine speed drops
x
Genverter overloaded
Reduce the electrical load (switch off some
consumers)
x
Fuel problem
Check fuel supply and clean fuel filter
x
Too much oil.
Drain oil to proper level
x
Lack of intake air.
Check air intake; clean air filter
x
Choked exhaust system, exhaust blocked.
Check the exhaust piping; inspect inside of
manifold
x
Faulty actuator
Contact WhisperPower service department for
advice
x
Defective alternator (windings or other)
Genverter must be sent to manufacturer for repair
of damaged bearing or winding
x
Damaged engine
Repair by WhisperPower service
