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Hello. Your unit is notorious for having heater and/or control problems. If the heater checks good, then the likely cause is a defective control. The heaters, pumps, valves, and other physical devices on dishwashers are controlled by relays mounted on the main control boards. These relays often fail due to age, cheap components, etc. Make sure to also check for an inline thermal switch/fuse--I didn't see one on the schematic I found on the net--heh, it was written in some sort of slavic language so I had to use my knowledge of symbols to interpret the diagram. I hope I helped you!
Most dishwashers require heater to acheive a pre set temperature before continuing the cycle, if temp if not acheived then often machine will continue on its current cycle (ad nausium) untill temp is acheived, if heater is not working then this of course will never happen, most heaters are visable in base of washer interia, take a look ,is there any damage that you can see.it can be fixed, and heater replaced if necessary.
see the w .diagram
1) the water must be preheating by heating elements and thermostat if this device fails, the machine will not work.
2) Timer: test for defective, repair wires for loose, clean contacts, repair broken wires, or burn.
God bless you.
Ok normally a fault like this is either 1 of 2 things either the heater or the main control board.
To check the heater you will need to pull the machine out and remove the right hand side panel and the top.
From there you will see the heater cyclinder towards the back. Pull the wires off the heater and with a multimeter meter the heater out. If faulty then the heater will need to be replaced.
If the heater is fine then take off the front plastic control panel and take the board out. Open the plastic casing unit and take the board out. Have a look at it and see if theres a burn mark or dry joint on the board. If so try and resolder it and see if this cures it. As sometimes the heater relay gets a dry jand casues it not to heat up.
If the board looks ok but the heater and wiring is fine then its more then likely going to be a faulty control board.
First of all check the continuity of the heaters as if the heaters are open there will be no heating. Now if the heaters are good then the fault is with the switching, so your focus now must be to see the area of fault of the program switching.
Check for loose wires, poor connection or faulty connectors.
Have the test of continuity with the power plug removed .
Please check if the clean light is blinking 7 times. If yes then please reset the power to the dishwasher. After, 5 minutes check if you are still getting the same error. If yes, then it is a water heating fault. To resolve this error try pressing this reset sequence-- Heat Dry - Normal - Heat Dry - Normal or High Temp - Air Dry - High Temp - Air Dry.
If this doesn’t work then it’s an issue with the heater circuit, door switch, wash pump not pumping the water past the heater efficiently or due to lack of water to heat. Please make sure that heater is not open circuited and is heating the water efficiently. If heater is fine then make sure water pressure is optimum and fill valve is working fine.
if you have changed the heater then you will find that either the connection from the heater to the control module behind the control panel is poor and may have damaged connections soldered to the module
Sounds like the heater is not working, could be bad heating element, bad door switch, or bad heater relay on the main control board. Check for continuity on the heater element to rule out a burned out element. Do the same for the door switch, if all checks out good then replace control board with heater relay.