I have a Frigidaire dishwasher in the upstairs suite that works OK sometimes , and other times it`ll stop before the cycles are complete and the "Hi Temp" and "Heat" lights will flash . All other lights are off .

When this happens , the dishes come out filthy , almost as though there was no water going into the dishwasher in some or all fill cycles , and the dishwasher has no water in it .

Other times the cycles complete, and the dishes come out spotless .

Any suggestions would be appreciated .........