TROUBLE SHOOTING
34
February 2020 / W-SQ-Pro 15/10.8 / W-SQ-Pro 18/15,5
5.2
ENGINE FAULTS
Remove 3 Amp. fuse in the control panel while
working on the generator to prevent the engine
from starting.
5.2.1 General
Most electrical problems relating to Voltage or Frequency
are due to wrong engine speed. Note that RPM and Hz are
basically the same.
Use the problem solving table to find the cause of a wrong
engine speed. When there is no obvious cause one can
adjust the RPM (refer to special procedures).
When the engine is not cranking well, starting problems
almost always originate from battery problems or poor
battery cable connections.
When the engine is cranking, well 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
generator is detected.
Failure code
Problem
COMMUNICATION
Communication error between the panel end the generator
LOW START BAT
Starter battery voltage too low
ALTERNATOR
No output battery charging voltage
AC-ALTERN. TEMP
AC-alternator temperature is to high (generators for mobile applications only)
WATER TEMP
Coolant temperature is too high
OIL PRESSURE
Oil pressure failure
AC VOLTAGE
Generator AC output voltage is either too high or too low
HIGH CURRENT
Generator is in overload
FREQUENCY
Output frequency of the generator is too low
