My aqualitis aqxxf149pi is displaying h20 error code, filling correctly at start of wash cycle but mid cycle starting to add excessive water before it goes on drain and spin resulting in flooding
H20 is a water warning. The machine THINKS it has no water coming in (Hence it continues to fill and fill because it can''t see the water). 99% of the time, this is a blocked rubber pipe that goes to the pressure sensor. Water in the drum fills the bottom of the rubber pipe and as the water rises, the air pressure in the pipe increases, which operates a bellows device in the pressure sensor. If the pipe is blocked, the pressure sensor won't operate and it will continue to try to fill until it times out. There COULD be a wire off the sensor or a wire that goes to the sensor loose on the main board, there could even be a failed component on the main board, but all of these scenarios are ar less likely than a blocked pressure sensor pipe. Take the lid off, pull the pipe off the bottom of the sensor, blow down it hard and this may well clear the blockage. Put the pipe back on the sensor and test. Come back if you need more advice
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