F6 code on display; spa may not respond to keypad commands or may lock up intermittently.

Safety: Turn off power at the breaker before disconnecting the keypad.

• Inspect keypad surface: Check the Hanscraft topside panel for cracks, lifted edges, or water under the display window. Any visible moisture suggests water ingress.
• Dry the area: Gently dry the keypad surface and surrounding shell with a soft cloth. Do not use heat guns or hair dryers directly on the keypad.
• Check cable connection: Access the control pack and locate the keypad ribbon cable. Unplug it, inspect for corrosion or bent pins, then reconnect firmly.
• Test operation: Restore power and test all buttons. If some buttons do not respond or F6 returns, the keypad assembly likely needs replacement.

Replacing the keypad is usually straightforward but requires careful sealing to prevent future leaks. Use the correct Hanscraft replacement keypad and follow the manufacturer’s installation instructions.