Troubleshooting Table For Alternator; Engine Faults; General; Troubleshooting Table For Engine - Whisper Power W-GV/2 User Manual

TROUBLESHOOTING
6.2.1

Troubleshooting table for alternator

PROBLEM
No output (voltage) at all
Genverter output voltage too low
when no load is on it and RPM is
above 2500 RPM
Genverter output voltage too low
under load, but OK in no load
condition
6.2

ENGINE FAULTS

Remove 3 A fuse from the control panel while
working on the Genverter in order to prevent the
engine from starting.
6.2.1

General

When the engine is not cranking well, starting problems almost
always originate from battery problems or poor battery cable
connections.
6.2.2

Troubleshooting table for engine

PROBLEM
Diesel engine fails to crank; no
response at all
Diesel engine fails to crank, the
starter makes clicking noises, or the
engine cranks very slowly.
Starter is turning engine smoothly,
but engine fails to start
22
CAUSE
 Circuit breaker "off" or faulty fuse
 Low engine RPM
 Alternator failure
 Alternator failure
 Genverter is overloaded
 Insufficient engine RPM
 Engine RPM drops when loaded
CAUSE
 Faulty fuse on the control panel
 Battery switch off
 Battery completely empty
 Almost certainly this is a battery
problem. Display will indicate "LOW
BAT1"
 Wiring system faulty
 Starter broken
 Engine lubricating oil too thick
 Out of fuel or faulty fuel, water in the
fuel
 Fuel solenoid is not opening (no "click"
can be heard)
 Fuel lift pump is not working
 Air in fuel lines
W-GV/2, W-GV/3, W-GV/3+, W-GV 8, W-GV 10 and W-GV 15 — June 2017 — EN
SOLUTION
Check switches and fuses and measure directly on
the alternator to exclude external causes.
Check the engine RPM and adjust (refer to special
procedures
Contact WhisperPower Service
Contact WhisperPower Service
Switch off a load; reduce number of consumers
Increase minimum RPM setting
Refer to "Engine speed drops" section in 6.2
When the engine does crank, starting problems almost always
originate from lack of fuel or air bubbles in the fuel pipes.
A failure code is displayed when a hardware failure at the engine is
detected.
SOLUTION
Replace fuse
Switch on
Charge or replace battery
Check battery voltage. Recharge the battery.
Inspect battery terminals and cables for a good
electrical connection (inspect
tattered wires, etc.)
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.
Repair the starter motor
Change oil, using a lower viscosity grade
Fill up with fuel or replace with better quality
Check wire connections and circuitry to solenoid.
(Refer to DC wiring diagram)
Check fuel filter and fuel lift pump: clean or replace
if necessary
Bleed air from fuel system (refer to maintenance
section)
for corrosion,