im servicing a hobart LXiH dishwasher. of course hobart wont release the service manual. initially the unit wouldnt heat the water. i found one of the wires at the heater contactor burnt in half. i replaced the contactor and the wire itself (the insulation had melted back considerably). now the water heats up to around 165 degrees, but the wash cycle wont start. it continues to flash fill (indicating the heaters are on) indefinately and then for no apparent reason it either starts to fill the washer again or it goes off on error E4. ive been through the list of possibilities for E4 (listed in the users manual) and none seem to apply. the only thing i cannot do from that list is delime the unit and i cannot delime it because it wont go into delime mode. i hold delime and power up the unit and delime comes on with fill and both blink continually until the unit tries to fill itself again. i have made certain all of my water level probes are clean.
if anybody has a service manual they would share or words of advice on where to start it would be sincerely appreciated.