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How can I fix my bosch excell1200?

The machine wont complete a cycle - there is currently a washing stuck inside and I cant get the door open. The code FO4 is showing up. The machine is just over two years old and it has been sticking a bit recently although I've always managed to get the washing back out by turning it to a drain cycle. I don't know what to do now?
Susan Gallagher, November 2008
Drain machine by running the outlet pipe into a bucket at floor level or run the outlet pipe out of the back door if it'll reach. Check the filter unit for blockages. Filter generally located behind a panel at the foot of the machine.Some are obvious like little square hatches and some are hidden behind the trim panel at the foot of the machine. Once panel is removed the filter should be visible. Its generally a circular plastic fitting which unscrews in an anticlockwise direction.

Disconnect pump from sump hose and check for obstruction in either item. Pump removal: power off, remove cover, locate pump, (attached to other end of drain pipe).undo 2 wiring connections, 2 hose connections, and pump mounting screws. Remove pump chamber - some are held in with screws, others clip into place. Check for foreign objects round the impeller. If pump chamber is clear, may be a fault with the pump motor - in which case, replace the pump.

Check the pressure switch -the system that determines correct water level in the drum. Its a round item about 3 inches across with several wires connected, it sits under the top cover. Its an air operated switch which tells the machine water has reached the correct level. Disconnect the thin rubber pipe from the switch and blow down through it to clear any blockage. Switch itself may be faulty but its more likely the pressure pipe or the vessel attached to the other end of the pipe is blocked.

Repair and service your own washing machine. Go to www.2ndwave.co.uk/manual.html

dannyboy, November 2008
link Click here to see other fixes for Bosch.