Westerbeke 3.5KW SBCG-60Hz Operator's Manual page 45

SOFTWARE DIAGNOSTICS·
Engine RUN State Shutdowns:
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'Yarning Description Parameters Possible cause
o
dead battery
Battery Voltage Low
Less than
10
volts
o
blown fuse
12
o
faulty regulator or charging circuit
o
loose connection or corroded wiring
o
faulty exhaust temperature switch
13
Exhaust Temperature High Open circuit
o
loose connection or corroded wiring
o
seawater flow blocked
.
14
External Alarm Open circuit
o
external alarm fault
(i.e.
Fireboy)
o
loose connection or corroded wiring
Wideband
02
Sensor
(WB02)
ECU measures
o
excessiyely rich or lean combustion
15
Reading Out of Table
A
<.70
or A >
2.00,
which
o
loose connection or corroded wiring
is out of the table range
o
oxygen sensor faulty
Wideband
02
Sensor
(WB02)
A reading not crossing
o
excessively rich or lean combustion
16
Failure to Cross Stoich
above and below
1.=1.00
at
o
dirty or clogged fuel injectorCs)
least once per minute
o
insufficient fuel supply or pressure
Wideband
02
Sensor
(WB02) Heater current out of
o
loose connection or corroded wiring
17
Heater failure
normal range
o
oxygen sensor faulty
Engines & Generators
35