wash water level too low on andi front load washer?

wash water used to be visible to 1/3 up door now can't see any water & can even open door during wash without spills!!if i don't add extra water by hand clothes come out covered with spots of soap powder even tho rinse level fine. (years ago same happened under warrantee & tech adjusted something under lid took 2 mins to fix. but happened again after warr.)now i'm sick of adding 2 buckets water so i can see clean wash water