Whisper Power W-GV 4 Scalino, User Manual

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TROUBLESHOOTING
W-GV4 Scalino outdoor — April 2017— EN
21
PROBLEM CAUSE SOLUTION
Diesel engine fails to crank, the
starter makes clicking noises, or the
engine cranks very slowly.

Almost certainly this is a battery
problem. DDC, if installed, will indicate
“LOW BAT1”
Check battery voltage. Recharge the battery.
Inspect battery terminals and cables for a good
electrical connection (inspect for corrosion,
tattered wires, etc.)

Wiring system faulty During the normal starting process, the battery
voltage drops to 11V (with a fully charged battery).
If the voltage does not drop during starting, the
electrical connection is faulty. If the battery
voltage drops lower than 11V, then the battery has
been discharged too deep.

Starter broken
Repair the starter motor

Engine lubricating oil too thick
Change oil, using a lower viscosity grade
Starter is turning engine smoothly,
but engine fails to start

Out of fuel or faulty fuel, water in the
fuel
Fill up with fuel or replace with better quality

Fuel solenoid is not opening (no “click”
can be heard)
Check wire connections and circuitry to solenoid
(refer to Single Line Diagram). Repair if necessary.

Fuel lift pump is not working
Check fuel filter and fuel lift pump: clean or replace
if necessary

Air in fuel lines
Bleed air from fuel system (refer to maintenance
section)

Blocked injector
Have the injector tested and cleaned if necessary

Wrong valve clearance Adjust valve clearance

Low compression because of dirty valves Contact WhisperPower service department for
advice

Loss of compression by wear out or
damage
Repair by WhisperPower service
Engine runs irregularly

Unsuitable or contaminated fuel

Lack of fuel
Fill up with fuel or replace by better quality

Air in the fuel pipes
Bleed air from fuel system (refer to section 5.2.2)

Choked fuel filter
Check fuel filter and replace if necessary

Disturbances on the electrical system/
user side Check whether the equipment using power has
higher starter voltage demand. If not, contact
WhisperPower service centre.

Faulty fuel lift pump
Check and repair or replace

Choked air filter

Lack of air
Check the air intake. Replace air filter if necessary.

Choked exhaust system, exhaust blocked
Check the exhaust piping. Contact WhisperPower
service department for advice necessary.

Faulty actuator Replace faulty parts. Contact WhisperPower
service department for advice.

Blocked injector
Have the injector tested and cleaned if necessary

Wrong valve clearance
Adjust valve clearance

Lack of fuel
Check fuel supply system: fuel pump and filter.
Clean if necessary
Engine speed drops

Genverter overloaded
Reduce the electrical load (switch off some
consumers)

Fuel problem
Check fuel supply and clean fuel filter

Too much lubricating oil
Drain oil to proper level

Lack of intake air
Check air intake; clean air filter

Choked exhaust system, exhaust blocked.
Check the exhaust piping. If necessary, contact
WhisperPower service department for advice.

Faulty actuator
Contact WhisperPower service department for
advice

Defective alternator (windings or other) Genverter must be sent to manufacturer for repair
of damaged bearing or winding

Damaged engine
Repair by WhisperPower service