MQ Power WHISPERWATT Series, Operation Manual

Page: 34 / 42

PAGE 34 — DCA15SPXU4F • OPERATION MANUAL — REV. #1 (02/10/17)
ENGINE FAULT CODES
ENGINE MALFUNCTION/FAILURE DIAGNOSTIC
CODES
When a engine malfunction/failure has been
detected the engine will be shut down and
the error code will be displayed on the glow
plug warning lamp by a series of flashing
patterns.
The flashing patterns consist of a combination of one
or more
long
flashes and one or more
short
flashes.
Reference Table 11 for an explanation of the flashing
pattern and the associated countermeasures.
Table 11. Engine Fault Codes
Symptom Fault Explanation Indication Solution
Engine Speed Too High
115% or more of the rated
engine speed
Long 1 Short 1
Adjust engine speed to
correct RPM.
Low Oil Pressure
Oil pressure switch on
7.1 PSI (49 kPa) Approx.
Engine Shutdown
Long 1 Short 2
Check engine oil level and
switch.
Low Battery Voltage Insufficient Charge Long 1 Short 3
Inspect or replace engine
alternator/voltage regulator.
High Water Temperature
Overheat, 234°F (112° C).
Approx., Engine Shutdown
Long 1 Short 4
Check coolant level and
radiator. Also check Temp
switch.
Incorrect Crank Rotation
Defective crank rotation
sensor, disconnection or short
circuit
Long 2 Short 1 Replace sensor, check wiring.
Engine will not start
Disconnection, short circuit
fuel solenoid
Long 2 Short 2
Replace fuel solenoid, check
wiring.
Water Temperature Icon
Always OFF
Water Temperature Sensor
Disconnected
Long 2 Short 4
Check wiring or replace
sensor
Temperature Icon Always
ON
Water Temperature Sensor
Short
Long 2 Short 5
Check wiring or replace
sensor.
Abnormal Battery Voltage
No Charge, cable
disconnected
Long 2 Short 6
Check or replace battery
and engine alternator. Check
wiring.
No Cranking
Regulator voltage exceeds
18 VDC or more
Long 2 Short 7
Check or replace voltage
regulator and battery