2023 OWNER’S MANUAL
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Special Attention
In regular use, the heater should not require any routine
maintenance. However, it is advisable to avoid placing items in
front of the vents, particularly when the heater is in use.
The heated air coming out could cause damage.
Never run the heater in a confined space, such as a garage or shop.
Running the heater requires also running the engine; fumes from
the engine can be deadly. See also the Common Sense Approach
in the Safety section of this Owner’s Manual regarding carbon
monoxide danger.
See the Storage and Winterization section of this Owner’s Manual
for winterization instructions.
Carbon monoxide is emitted from the engine’s exhaust system.
Never run the engine without proper ventilation. Do not run the
engine in a confined space or where fumes may be trapped.
Troubleshooting
If the heater fails to respond when the switch is turned to either of
its ON positions, check on the main circuit breaker panel to ensure
that the circuit has not tripped. If resetting does not correct the
problem or if it continues to trip, take the boat to an authorized
MasterCraft dealer for repair.
SEAT HEATERS
Models
Optional on all models for driver’s seat; certain models for
observer’s seat.
Purpose
The seat heat option allows equipped seats to be warmed to
temperatures above those of the ambient air.
Location
The electrical seat-heat mechanisms are located inside equipped
seats. The seat heat switch can be found in the helm mounted
touchscreen on the Dual Screen Dash. In some models, an optional
observer seat heat switch will also be found in the helm
mounted touchscreen.