Its no good THINKING the pipe is not blocked you need to PROVE IT
undo the clip holding the pipe to the u bend (twist pipe to help come off)CHECK U BEND HOLE FOR BLOCKAGE AS VERY (small) AND CLEAR HOLE OF WASHING POWDER AND GREASE
Put outlet pipe into a bowl lower to floor water (Should flow by gravity if not problem in pump or filter blockage advance program to a SPIN POINT in the cycle keeping the outlet pipe in the bowl start machine DOES THE MACHINE NOW PUMP OUT, IF YES blockage was in the u bend connection.When machine is empty clean out ALL THE PIPES from the drum output(sump hose)this is where the makers HIDE THE FILTER to the pump clean the pump out also, water SHOULD KNOW PASS OUT OF MACHINE EASILY.
wirecutterman
January 2008