Ignore the error code. Its got to be the water level switch (WLS). Maybe a safety feature of the A1435, Maybe this stops one flooding the room if the water valve locks open. My answer is to check the switch again. Stuff can get inside during servicing- even air/water locks. Elements just stop working. All I can say is, this is a mechanical issue. Other diagnosis> dis connect the pump's electrical signal, (TURN OFF POWER FIRST!!!!) then try. But you must watch it doesnt over fill. This might clear the WLS. Reconnect the signal and reset machine.
Jason
November 2009