Display shows BLB; spa may disable the UV or CLEARRAY bulb system.

Safety first: Turn off power at the breaker before servicing the CLEARRAY or UV system.

• 1. Access CLEARRAY system: Open the equipment bay and locate the CLEARRAY UV housing on Sundance models equipped with this feature.
• 2. Replace UV bulb: Follow the Sundance owner's manual to remove the housing cap, carefully extract the old bulb, and install a new OEM CLEARRAY bulb. Avoid touching the glass with bare fingers.
• 3. Inspect quartz tube: Check the quartz sleeve for cracks or heavy mineral buildup. Clean with a non-abrasive cloth or replace if damaged.
• 4. Reset bulb timer: Use the control panel sequence specified in your model's manual to reset the BLB reminder after bulb replacement.
• When to call a technician: If BLB remains after bulb replacement and timer reset, the UV ballast or control board may require professional diagnosis.