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What do Error Codes H20 followed by AL06 on Hotpoint Ultima DWF70 mean?

my dishwasher decided to flood the kitchen this evening. after taking off the bottom of the machine i noticed what would appear to be a diaphragm or vacuum type valve hanging down and a hose with a "y" section untapped. the bore/diameter of each suggested they should be connected together by means of the jubilee clip found at the base of the machine. I connected them up and hey presto....no leak. but now i have the above codes and the dishwasher seems to be able to start a cycle at will, even when switched off!!!!!! I've done something but i dont know what it is. The only other thing i've touched is what would appear to be an earth on the base panel which is covered in polystyrene. i had to disconnect the double spade connector from it. the connection has 3 males but the female has only 2 wires. i've connected the 2 females to the correct males but could there be a +/-? if so could this cause the symptons above if i've re-fitted the connection the wrong way round. sorry its a long question. help!!! thanks
Steve, January 2007
water not turned on or nt getting through to dishwasher

danc, October 2007
Newer Hotpoint, Creda, Ariston and Indesit Dishwashers:

AL01 - Anti flood switch operated
AL02 - Valve or connections
AL03 - Time out - drain
AL04 - Thermistor (module)
AL05 - Circulation pump
AL06 - Time out - fill
AL07 - Not used
AL08 - Time out - heat
AL09 - Software recogntion error
AL10 - Heating circuit
AL99 - Communications error - connectors, cables etc.
H20 - Time out - fill (taps)

airkool@hotmail.co.uk, January 2007
link Click here to see other fixes for Hotpoint Ultima.