867740720 Kenmore Heater - Instructions

First I dismantled the impellers that drive the wash and drain water to see if they were damaged or clogged - I knew the drain hose was not clogged. It seems you can' remove the wash impeller without breaking it..... at least I couldn't.
Since they were ok [i replaced the wash impeller that I broke], it seemed the only other thing could be the timer switch. I replaced it and all was fine again. It replaces by removing the plastic INSIDE panel of the door and quite easily after that.

Ordered lower dishrack PS2099930 (FSP 99002572). My old rack had permanent tines in 3 quadrants & foldaway tines in right rear. New rack (which came w/wheels) had permanent tines only in front 2 quadrants, plus 2 loose long tine rows (later ID'd as PS2099527, Front Fold-Away Tine, and PS2099528, Rear Fold-Away Tine). Ordered PS2097246 (Rear Rack Bowl Tine Row) to replace my existing rusty tines, but "on order" really meant "not available anywhere." Watched installation video for PS2099037 (Fold Away Tine Clip) which clearly matches the loose tine rows that came with rack, but was problematic since my center spindle is permanently mounted on floor of cabinet, not on the rack. Fold-Away Tines could be cut off, but they would start rusting immediately. Ordered 4 PS343939 (Tine Row for upper dishrack) and 4 PS2099037 (FSP 99001436 Fold Away Tine Clip), hoping that these tine rows would clear the spindle. They work ok, but do graze the spindle slightly. Undecided whether I will tolerate the consequent floppiness of the tines, or permanently lock into place using nylon cable ties. Actual installation easy, with no extra tools, once I acquired parts that fit.

The only difficulty with installing the new lower dishrack was that the back tines came as 2 separate pieces with no instructions or clips. We ended up using white zip tipes to attach the pieces.