Hoover wdm120 tripping the rcd!!?

Check out the carbon brushes in the motor. Theyre graphite blocks which transfer mains power to the copper segments of the motor -Theyre probably worn down. They're quite cheap parts and easy to replace. Power off, drag machine out onto the floor, remove the back cover and locate the motor. May help if the machine is tilted at an angle or laid on its side. The brushes are at the other end of the motor from the drive pulley. The holders are plastic or bakelite and are generally held in with screws or plastic clips. Also, look at the copper segments they run on to check for burning or pitting. If the segments are burnt or damaged you need a replacement motor or a replacement armature (motor part) if you can source one. Occasionally may be a fault in the motor drive circuit board - in which case replacement of board only real option.

Power off, drag machine out onto the floor, remove back cover or tip machine up at an angle. Check the heater, heater connections, thermostat connections and the connections on the timer, (looking for a burnt out terminal or wire). Heater is located at bottom of drum. There should be no continuity between the either terminal and the metal sheath of the heater - if there is, there's an internal short circuit. When removing heater, disconnect wiring, undo central mounting nut and prise it out of its rubber seal - may require some effort. Replace heater, use sealant when refitting rubber seal and ensure it is fully pushed into the recess in the backplate. Make sure the element locates into mounting bracket inside the drum.(look inside the element with a torch and you will see mounting bracket). This bracket ensures that the moving inner drum doesnt strike the element and damage it.

Check all wires and connectors generally for internal breakages or wear of the insulation - caused by movement of the wiring loom attached to the drum. Over a long period of time the wire strands inside the insulator break through metal fatigue. Although the outside of the wire appears ok the internal is open circuit. Pull on each individual wire - if theyre ok internally, they shouldnt stretch.

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

dannyboy
January 2009