Operating & Installation Manual for the ES52 Engine Controller
Fault (short or overload) on
one of the annunciator outputs
Check for fault, once fault is corrected
then operation resumes.
Crank disconnect POT set too
high
Decrease crank disconnect pot setting
Annunciation output not
working
Fault (short or overload) on
one of the annunciator outputs
Check for fault, once fault is corrected
then annunciation operation resumes.
Timer LED and timer
output does not activate
Increase timer pot setting, turn pot
clockwise
Timer LED works O.K. but
timer output does not
activate
Fault (short or overload) on
timer output.
Check for fault, once fault is corrected
then output operation resumes.
Flashing Over-speed LED
(indicates loss of speed
signal)
Speed signal improperly
connected, missing, or
damaged.
Check speed signal wiring; replace
damaged speed signal source.
Crank output damaged, not
working
Check wiring and replace controller
Starter or starter solenoid
damaged
Replace/repair damaged starter or
starter solenoid.
Flashing Over-speed using
Generator output during
cranking.
Not enough residual voltage
during cranking.
Set DIP switch # 9 to OFF
Alternating flashing of
over-speed & over-crank
Crank disconnect set too high
Flashing run LED & solid
oil LED
Oil switch not closed as it
should be
Turn DIP switch #6 OFF to disable oil
verification.
Solid oil LED immediately
on start-up, without engine
actually cranking or
starting.
False speed signal being
detected by controller. This
problem can sometimes occur
in installations where there is
AC power from inverters near
generator output lines
connected to the speed signal
cable.
Avoid running AC lines from inverter
in same conduit as generator output
lines.
Install a small step down transformer
between the speed sensing wires and
the generator output.
If the neutral from the generator output
is not grounded, attach it to ground at
generator.
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