I had the same problem and traced it to the pipe feeding the jet .I rodded it through and pushed out a cigar shaped length 3 inch piece of scale. This sorted it for me.Disconnect from electrical supply and isolate water.Pull the appliance out to gain greater access. To get to the jet hose you have to remove the top panel (2 x 8mm screws)at the rear of the top panel,2 x 8mm screws at rear floor level, remove the 2 grey grommets on the sides and the 2 x 8mm srews there-in.Where the cold feed goes in there are two electrical connectors, which have to be disconnected.These simply pull out without much effort. MARK one with a T or B so you know which is which for Top or Bottom.There are two more screws on the top of the chassis strenghtening plate. Lastly put a cloth under the two visible hoses by the cold water feed and disconnect them. I found it easier to elevate the wm to remove the rear panel and tipped it back to put a length of 2x2 front and back. With abit of a tug at the top and bottom of the panel , the rear seperates. You should see the pipe falls in front of the drum atop a motor. release the spring clip (bit awkward) and move to the front of the machine. Locate the clip that retains the door seal and seperate the teeth. I think I used a flat screwdiver and gave it a twist. Remove the clip and gently pull the top of the seal away and down to reveal the top of the pipe that feeds the jetThis has a sprung clip chich is easily removed with flat nosed pliers and a flat screwdriver. As you remove the hose from the motor ,note all the routing of the pipe for re-installation later and catch any excess water as it drains. Water and electric motors don't mix. Seems like a lot of work for a simple pipe.
Rob Lewis
March 2011
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