First we tried to change the filter. Water was leaking from the area of the filter when we changed the filter. We purchased an "original" Fridgidaire filter, no change.
Did some research on the internet and decided to change the two tubes and the filter valve (at the back of the filter housing).
Must have been the right diagnostic and the right part to make the repair, Gave me an opportunity to clean the condenser coils as well. After 6 years of service they needed it badly.