Volvo Penta 21182210, Operator'S Manual

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EVC Diagnostic Function
Despite regular maintenance (in accordance with the maintenance schedule) and perfect operation, faults may
occur which must be addressed before the boat can be operated any further.
This chapter describes the purpose of the EVC’s diagnostic function, the types of alarms and messages the
operator can get from the EVC system, and how to address problems when they occur.
The diagnostic function has the following tasks:
● Detect and localize faults.
● Warn the boat’s operator of faults that have been detected.
● Protect the engine and drive to ensure continued operation when serious faults are discovered. The
engine RPM is reduced or the engine stops automatically if needed.
Alarms and Messages
There are several types of alarms and messages that may appear as pop-ups in the displays. They must be
acknowledged to stop appearing in the display. Please refer to
Acknowledging Alarms and Messages .
Alarm for Faults
50905a
This type of alarm appears as a Caution, Warning or
Danger pop-up that alternates between “source of
fault/cause of fault” and “action to take.” It appears in
the display representing the engine with the fault. If the
fault is more serious the fault pop-up is also accom-
panied by a buzzer.
These alarm pop-ups have the following priority, from
highest to lowest:
51490
Danger Pop-up – If the Danger pop-up appears dur-
ing operation, a serious engine fault, requiring imme-
diate attention, has occurred.
Warning Pop-up – If the Warning pop-up appears
during operation, a fault has occurred which will not
immediately damage an engine or drive. Acknowledge
the alarm as soon as safely possible.
Caution Pop-up – If the Caution pop-up appears dur-
ing operation, a fault has occurred which will not dam-
age an engine or propulsion unit.
Troubleshooting
126 47700387 06-2009