Hi,
The pressure switch is on the r/hand side of the sump (if you are looking from the front)there is a microswitch attatched to the pressure switch. Twist the switch untill it won't twist any more then pull it away from the sump.( the is a mesh covering the diaphram in the switch i have had this blocked before.
hope this helps
www.candmdomesticappliances.co.uk
paul
April 2009
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