Fisher & Paykel Dryer Error Code EB

The EB error code on a Fisher & Paykel dryer indicates that the moisture sensor rod is producing a static or unchanging signal. The moisture sensor system works by measuring the electrical conductivity between two metal sensor rods located inside the drum. As wet clothes tumble and make contact with the rods, the conductivity changes, allowing the control board to track how dry the load is becoming over time. When the signal stops changing and remains flat or frozen, the control board interprets this as a fault condition and triggers the EB code.

A static sensor signal typically means the control board is receiving a continuous reading with no variation, which can occur when the sensor rods are coated with residue, when there is a wiring fault in the sensor circuit, or when the sensor itself has failed. Fabric softener buildup and dryer sheet residue are particularly common culprits, as they deposit a thin insulating or falsely conductive film on the rod surface that prevents accurate conductivity changes from being detected. This can fool the sensor into reading a consistent value regardless of actual load moisture content.

In some cases, the issue originates further upstream in the circuit, such as a broken or corroded wire harness connection between the sensor rods and the control board, or a fault on the control board itself. If the sensor circuit is open or shorted, the board receives no meaningful variation in signal and will log the EB fault. Proper diagnosis requires inspecting the physical condition of the sensor rods, testing continuity in the wiring harness, and evaluating whether the control board is correctly processing the sensor input.