Display shows E06 and pump will not run; often occurs after a power surge or lightning event.

Safety first: Turn off the breaker and lock it out if possible. Use a qualified electrician if you are not comfortable working with live circuits.

• Measure supply voltage: With the breaker ON and pump disconnected, use a multimeter to measure voltage at the pump’s supply terminals. Confirm it is within the AquaFlo nameplate range (e.g., 208–240V).
• Inspect electrical connections: Turn power OFF again. Tighten all lugs at the pump disconnect, sub‑panel, and pump terminal block. Check for burnt insulation or discoloration.
• Check neutral and ground: Ensure the equipment ground is securely connected to the motor frame and that the neutral (if used) is tight and not shared improperly with other loads.
• Surge protection: If the system uses an external surge protector, inspect it for tripped indicators or damage and replace if necessary.
• Controller reset: After correcting voltage issues, power the pump back on and clear the error per the AquaFlo manual. Monitor for recurrence.

Persistent E06 with correct line voltage usually indicates internal control board damage; replace the AquaFlo control board or motor drive module.