2023 OWNER’S MANUAL 
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To reset a tripped digital switch, press RESET next to the system 
with a fault. To reset the entire EPDM, press RESET ALL on the 
bottom right portion of the screen. 
If a digital switch continues to trip multiple times in one outing, it 
is a sign of a larger electrical issue and the boat should be taken to 
an authorized MasterCraft dealer for diagnosis and repair. 
The EPDM and digital switches are designed to protect the engine 
and electrical system from damage. If a switch has tripped and 
continues to trip even after resetting the EPDM, it may be a 
symptom of a larger electrical issue, and the boat should be taken 
to an authorized MasterCraft dealer for diagnosis and servicing. 
Tab Diagnostics
Under main menu, select 
ballast/tab settings, then 
scroll to “calibrate tab 
sensors” to recalibrate  
the actuators.
EPDM Diagnostics 
The EPDM is a solid state engine fuse block designed for all 
MasterCraft boats to make engine diagnostic checks easier and 
more convenient for quick, on the water fixes. To access the EPDM 
screen tap EPDM Diagnostics from the Settings Menu. 
The EPDM screen displays critical engine and electrical system 
operating information. Amperage draw and the status of internal 
digital switches are displayed for each engine function. Digital 
switch status is designated by either a green, red or gray indicator. 
•  A green indicator denotes that the digital switch is  
functioning properly.
•  A red indicator denotes that there is a problem with the digital 
switch and it has tripped.
•  A gray indicator denotes that the digital switch is currently 
unused or not receiving power.