You might try this not sure if this works for your model or not
SPA LOCK
The SPA LOCK feature deactivates all of the functions of the main and auxiliary control panels. It is generally
used to prevent unwanted use of the spa.
To activate the SPA LOCK, press the LIGHT minus (-) and TEMP minus (-) buttons at the same
time and hold them down until the word SPA and the lock symbol are illuminated on the
display (approximately two seconds).
When the SPA LOCK is activated, if a button is pressed, the control panel will display
the lock symbol and the word SPA for 30 seconds, then turn off.
To deactivate the SPA LOCK, press the LIGHT minus (-) and TEMP minus (-)
buttons at the same time and hold them down until the word SPA and the lock
symbol are no longer illuminated on the display (approximately two seconds).
