Engine Overheating (EFI Engines)
21195-1
If the engine overheats at high speeds, the engine
protection mode will activate and:
● Engine speed will be automatically reduced to
approximately 2500 or 3500 RPM, depending on
the severity of overheating. Mild overheating
results in a speed reduction to 3500 RPM. If an
engine alarm has been installed, an audible
warning horn will sound for 1/2 second every 5
seconds. More severe overheating results in a
speed reduction to 2500 RPM. If an engine alarm
has been installed, an audible warning horn will
sound once per second.
● The engine protection mode will remain active
until the engine has been reduced to idle and the
overheating problem has been corrected. For
additional information, see Engine Protection
Mode.
To determine possible causes for overheating:
● Look for obstructions to the water intakes (e.g.,
seaweed, plastic bags, etc.)
● Check impeller
● If fresh water cooled, check coolant level
● Check all water supply hoses for leaks
NOTICE! Ignoring an overheating situation can cause
engine damage and/or equipment failure which may
not be covered by your warranty.
If the situation persists, contact your Volvo Penta
dealer for assistance.
Water in Bellows
OceanX (OXi) drives are equipped with a sensor that
detects water intrusion in the bellows. If water is
detected inside the bellows, an alarm horn will sound
for one second every sixty seconds. If this alarm
sounds, please contact your dealer for repairs as soon
as possible.
Water in Oil and Oil Level
OceanX (OXi) drives are equipped with an oil level
sensor that also detects water intrusion in the drive. If
the oil level in the drive is low or water is detected in
the oil, an alarm horn will sound for one second every
sixty seconds. If this alarm sounds, check the level and
quality of the oil in the drive.
For instructions on checking the level, please refer to
Lubrication System: Checking Engine Oil Level in the
chapter entitled Technical Data. If the oil level is low,
add the necessary amount.
To check the quality of the oil, siphon off a small
amount of oil from the drive. Check to see if the oil has
a milky or translucent white appearance. If the oil has
water in it, it will appear milky.
Troubleshooting
114 47701898 12-2010
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