errorfaq/HardwickHardwick error codes8 codes — tap one for its meaning, causes, and fix steps.F0Function Key StuckF1Defective Touch Pad or Control Board (clock)F2Oven Temperature Too HotF5Hardware and Watchdog Circuits DisagreeF6Missing AC SignalF7Function Key Shorted or StuckF8Analog / Digital SupervisoryF9Door Latch SupervisorySearch all codes →