Dishwasher Training/Repair Manual

12Service Tips --/ / /-- Modules Displaying “1”Occasionally dishwashers can run for hours, not finish washing & show a “1” in the display. Thismeans the module has timed out due to an unidentified heating problem -- all heating related partsmust be checked until the problem is found.If no, module isworking fine.NOTE: The heating problemmust be fixed before themodule will reset and stopshowing a “1” in the display.NTC(~ 55kΩ@72ºF)Replacing NTC’salso replaces Hi-Limit’s.NOSTARTHas dishwasherstoppedwashing and isshowing a “1”in the display?YES3-winding circulation pumps can measure ~7Ω or 9.4Ω, depending on motor starter.Controlmodule(heater relay &solder joints)Wireharness &terminalsTIP: Modules have been replaced whenproblem was loose connections. Beforereplacing modules, check connections first!If yes, control modulehas timed out showingthere’s an unidentifiedheater problem.Have theseparts beenchecked??High Limit(~ 0.3Ω)IMPORTANT:Whenever a “1”shows in themodule display,the module mustbe reset (after theheating problemhas been fixed)by running thedishwasher. Themodule resetsafter the 1 st run.Replacing heaters alsoreplaces NTC’s, flowswitches & Hi-Limit’s.Heater(~ 11Ω)CirculationpumpIf flow switch is OK &water doesn’t flow,check circulation pump.Flow Switch(~ 0.4Ω)HINT: Check module heater relays, wireharnesses / terminals & heaters beforechecking NTC’s, flow switches & high limits.702_58300000133621_ara_en_aRev 0 (1/17/08)