Zero Effort Control Features; Warning System - Mercury 300 XS OptiMax Manual

Zero Effort Control Features

a
b
c

Warning System

WARNING HORN SIGNALS
When the key switch is turned to the "ON" position, the horn will turn on for a
moment as a test to indicate the horn is working.
There are two types of warning horns to alert the operator of an active problem
within the engine's operating system.
1. Continuous six second beep: Indicates a critical engine condition.
Depending on the condition, the Engine Guardian system may engage
and protect the engine by limiting power. You should return to port
immediately and contact your servicing dealer.
2. Intermittent short beeps for six seconds: Indicates a noncritical engine
condition. This condition does not require immediate attention. You may
continue using your boat, however, depending on the nature of the
problem, the engine's power may be limited by the Engine Guardian
system (see Engine Guardian System following) to protect the engine.
You should contact your servicing dealer at your earliest convenience.
It is important to note that in either of the above scenarios, the horn will only
sound one time. If you key the engine off and restart it, the horn will sound
again, one time, if the fault is still present. For visual display of the specific
engine functions and additional engine data, refer to SmartCraft Product
information, following.
A few of the noncritical conditions indicated by the intermittent short beeps for
six seconds can be corrected by the operator. These operator correctable
conditions are as follows:
•
Water in the engine mounted fuel filter. Refer to Maintenance – Water
Separating Fuel Filter.
FEATURES AND CONTROLS
a - Throttle lever
b - Trim switch
c - Shift lever
4090
48
eng