Display shows LOC2 or PL2 and only limited functions are available.

Unlock procedure: Consult the Marquis spa manual for your model. Typical steps:

• Press and hold a combination such as Temp Up + Light or Temp Down + Jets for 3–5 seconds until LOC2 clears.
• Cycle through lock modes by holding the lock button combination repeatedly until no lock icon is shown.

If the panel will not exit LOC2 even after power cycling, the topside control or control board firmware may be malfunctioning and require service.