Stephill Generators SSDP30-70 - DSE 6110 Fault Finding Guide
Issue 3
• Check water/antifreeze level in the radiator.
Caution hot steam can burn!
• Check the inside face of the radiator is not obstructed with oil/dirt or debris.
• Check the condition of the fan belt, damaged, broken or loose.
Note
You may experience low battery charge DC if the fan belt is loose.
• Check that the generator air inlets and outlets are not obstructed.
• Check temp switch and sensor wiring.
• Check wires 13 and 40 in the DSE 6110.
• Check the operation of the engine thermostat.
• Radiator may be blocked - replace.
• Possible faulty water pump.
• Check water/antifreeze level in the radiator.
Caution hot steam can burn!
• Check wiring into the coolant switch.
• Check the condition of the fan belt and tightness.
Note
you may experience low charge if fan belt is loose.
• Check for loose wires on the charge alternator.
• Check battery DC voltage while generator running, should be 13.0-15.0V.
• Check for continuity of wire No.52 from the charge alternator to the starter motor.
• Check for continuity of wire No.6 from the charge alternator to the DSE 6110.
• Check the condition of the battery and change if necessary.
• Check/replace the charge alternator.
• Check the hardwire door is fitted securely
• Check the magnetic connection behind the hardwire door and control box.
• Check wiring from the switch to the DSE 6110 wire No.46.
• Check switch operation. (Open from ground to fault).
• Check all MCCB/MCB’s are in the ON (up) position.
• Check wiring on the sockets, switches and circuit breakers.
• Check engine temperature display on the DSE 6110 -
Engine
page. High engine temperature
shutdown is set at 110 °C.
Engine runs but generator
will not take load.
Hardwire Door
Shutdown
High Engine Temperature
Charge Alternator Failure
Battery not changing
Coolant Level Low
Shutdown
• If the symptoms persist check that the radiator has had the correct antifreeze utilised when
serviced?
• Ensure the exciter wire (No.6) at the charge alternator is around 12V DC, but only when the
generator is running.
• Ensure the exciter wire (No.6) at the DSE 6110, is around 12V DC, but only when the generator
is running - no DC volts measured could indicate a faulty DSE 6110 control module.
• Check the
Earth Leakage Relay
hasn't tripped (Ref. Generator handbook)- Bypass or adjust if
necessary.
If all the above has not solved the high engine temperature issue then the following may
apply;
• Check for continuity from the above wires at the DSE 6110 to the temperature switch and
sender.
• Flush the radiator out and replace the water/antifreeze mix 50/50. Use the correct antifreeze
as indicated near the filler.
• If the generator runs with the plug removed from the coolant sensor, replace the sensor.
JD/03/20
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