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 2023 OWNER’S MANUAL 
Location
The blower system is mostly unseen by those on-board. The 
system operates automatically when the key switch is turned to 
the ON position, 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 
INOPERABLE OR NOT WORKING PROPERLY. SEE THE DANGER 
WARNING ON THE PREVIOUS PAGE.
The blower hums audibly when it is operating. If it is not 
functioning, 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 procedure. If there is sufficient 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.