Display shows CF or CLn reminder; spa otherwise operates normally.

Safety first: Turn off power at the GFCI breaker before removing filters to avoid accidental pump start.

• 1. Remove filters: Take out all PDC Spas filter cartridges from the skimmer or filter housing.
• 2. Clean thoroughly: Rinse with a garden hose, spraying between pleats from top to bottom. For heavily soiled filters, soak in a spa filter cleaner solution per product instructions.
• 3. Inspect condition: Replace filters that are torn, collapsed, or more than 1–2 years old with genuine PDC Spas-compatible cartridges.
• 4. Reset reminder: Use the topside control to clear the CF/CLn reminder (often by holding a specific button for several seconds; refer to your PDC Spas manual).