Not Heating or drying

Whirlpool dishwasher model #DU8770XB1. Heating element checks good at 45 ohms. Cycling thermostat checks good at infinity (Normally open), Hi-Limit thermostat checks good with or having continuity.
What else can i look at that would prevent the dishwasher from drying?
The dishwasher does work, turns on, washes the dishes Ok, but NO drying! ugh!
Thankx.

Besides a broken wires the problem can be a bad push-button switch or a bad timer. Unfortunately both parts are no longer available.

Here are the breakdown diagrams and http://www.appliancepartspros.com/partsearch/model.aspx?model_id=255655

Gene.

i need to replace the transmission on this unit
this machine was diagnosed by two different repairman