Safety first: Turn off power before removing the front panel.

Dry and clean: If there is visible moisture, gently dry the area and ensure the Kripsol heater is protected from direct rain or splashing.
Reseat ribbon cable: Disconnect and reconnect the flat cable between the keypad and control board.
Test buttons: With power restored, test each button. If some remain unresponsive, the keypad overlay is likely defective.
Replace panel: Install a new Kripsol keypad/display assembly, ensuring all seals are intact.

Heater display works but buttons do not respond or respond intermittently.

Possible Causes