Display shows PF or POWER FAIL; spa has lost its previous settings and may be in default mode.

Safety: Always turn off the main breaker before tightening electrical connections.

• Check household power: Verify that the GFCI breaker feeding the spa is fully on and not tripped.
• Inspect connections: With power off, open the MAAX control pack and check that all incoming power lugs are tight.
• Restore settings: Reprogram the time, temperature, and filtration cycles as needed.
• Monitor for repeats: If PF appears frequently without known outages, have an electrician check supply voltage and connections.