Warning System - Mercury GO BOLDLY SeaPro 500hp Operation And Maintenance Manual

NOTE: Throttle‑only mode also affects the joystick, if equipped. The drives will
move and the RPM can be increased, but the gear position will remain in
neutral.
4. The RPM of the engines can be increased.
To disengage throttle‑only mode:
1. Place both ERC levers into neutral. Throttle‑only mode will not disengage
unless the ERC levers are in neutral.
NOTE: Pressing THROTTLE ONLY while the ERC levers are in gear will only
turn off the throttle‑only light. The engines will remain in throttle‑only mode
until the operator returns the levers to the neutral position.
2. Press THROTTLE ONLY. The throttle‑only light will turn off.
3. The neutral lights stop flashing and remain illuminated. Either the ERC
levers or the joystick (if equipped) can now be used to control the boat's
movement.

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. Refer to Engine Guardian System. 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 boat‑mounted fuel filter. Replace the filter. Refer to
Maintenance ‑ Boat‑Mounted Fuel Filter.
• Cooling system (water pressure or engine temperature) problem. Stop the
engine and check the water intake holes in the lower unit for obstruction.
FEATURES AND CONTROLS
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