The cable runs in a warm, damp location and its connectors are a common failure point; a degraded cable shows as a drifting, noisy or dead reading with a component that is itself sound. This is the ribbon cable between the control board and the display panel, AWG28 conductors in a 10-way flat form. A failed ribbon presents as a blank or garbled display with a control system that is otherwise working normally. Wedeco was founded in Herford, Germany in 1976 and is now a Xylem brand.