Location
The blower system is mostly unseen by those on-board. The system 
operates automatically when the key switch is turned to the ON po-
sition, however the blower can be turned on through the dual screen 
dash. Navigate to the accessory page and toggle the blower ON 
an OFF. The engine compartment blower exhausts fumes through 
vents located on the transom of the boat
Operation
X and XT Series, XStar: The blower automatically activates and runs 
for four (4) minutes when the key is turned to the ON position. To turn 
the blower on manually, navigate to the accessories page on the dual 
screen dash. Tap the button to toggle the blower ON and OFF.
ProStar: Turn the switch to the right to turn the blower ON. Turn the 
switch to the left to turn the blower OFF.
NXT:  Flip the toggle switch up to turn the blower ON.  Flip the switch 
down to turn the blower OFF. 
NOTE:  Blower operation drains energy from the battery. 
SPECIAL NOTE:  The blower must operate for a minimum of four (4) 
minutes before starting the engine  at any time. The blower must 
also be operated during idle and slow-speed running, but is not 
necessary during cruising speed.
 
Troubleshooting
NEVER OPERATE THE BOAT IF THE BLOWER SYSTEM IS INOPERA-
BLE OR NOT WORKING PROPERLY. SEE THE DANGER WARNING ON 
THE PREVIOUS PAGE.
The blower hums audibly when it is operating. If it is not function-
ing, turn the ignition key to ON and verify on the voltmeter that the 
electrical system is charging at least 11.5 volts or higher. If it is not, 
it will be necessary to recharge the battery(ies). See the electrical 
information in this section of the Owner’s Manual for proper proce-
dure. If there is sucient charge indicated, but the blower still is not 
operating properly, DO NOT LAUNCH THE BOAT. Take the boat to an 
authorized MasterCraft dealer for repair.
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