Display shows FIL ERR or FLTR, filtration cycle does not run as expected or spa indicates filter error.

Safety first: No internal electrical work is required for basic filtration adjustments.

• Clean filter: Remove and thoroughly rinse the Arctic Spas filter cartridge. Replace if pleats are damaged or the core is cracked.
• Check filter cycle settings: Use the topside control to review and adjust filtration cycle start times and durations according to the owner's manual.
• Reset control: Power cycle the spa at the GFCI breaker to clear any temporary software glitches.
• Monitor operation: Observe the next scheduled filtration cycle to ensure pumps start and run for the programmed duration without errors.