Page 10 of your user manual tells you all about it ie flashing prewash light means child lock is on, to release press second and fourth buttons together for 3 seconds to de activate
i seem to have same problem with pre-wash flashing and no user manual. have tried suggested bottons two and four (which i presume are quick-wash and anti-crease) and all sorts of other combinations. light still flashing. only variation is when i switch off m/c and hold in start button while i switch back on. this rids the pre-wash flash but start button flashes instead. please help
got manual and it is the pre-wash prog follower light that is flashing ,not the function button light. it recommends pull plug and contact service. is this only option?