Product review (5 stars): F35 error fixed by pressure switch
Have a Kenmore Elite 5t. Got a F 35, Suds and F20 error codes. Swapped the flow meter first because of the F20, no change. I also ocleaned the trap on the bottom of the unit found some broken pens, crud and change, no change. Replaced the Pressure Switch and that fixed the problem. Before installing the switch I tested the vacuum line that attaches with can air, and line was clear. In research I also found the Suds call out has to do with too much detergent. Front loaders only need about a 1 1/2 gallon of water vs the about 16 gal for top loaders. So, front loaders should only use about 2 tblsps of He detergent.