Display shows LOC and buttons do not respond; spa appears locked.

Safety first: No electrical hazard for this issue, but avoid using sharp tools on the keypad.

• Unlock the panel:
  • Refer to the USSPA user manual; typically, press and hold a specific button combination (e.g., Temp Up + Temp Down) for several seconds to unlock.
• Check for stuck buttons:
  • Press each button individually to ensure it moves freely.
  • If buttons are stuck or the overlay is damaged, replace the topside control panel.
• Power cycle:
  • Turn power OFF for 1 minute and back ON to clear temporary keypad glitches.