I fixed a friends washer with the same fault, the relays on the mainboard were faulty. The board can be replaced for about £100 or if you can solder you can buy the relays from RS components part number 650-2401 for £1.35 each plus postage
Andy J
October 2007
f07 lights 2&3&4 heater relay
this is part of the main circuit board it can be repaired
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix washing machines.