28-06-2020 04:35 AM
Hi All, I have a Dishwasher Model# DW80H9970US when I select sanitizing, at the end when I open the door the dishes are not hot and there is no steam, I know the heater is not heating the water. There is no error. I measured the resistance on heating element which is around 14 ohm and I connected two terminal of RY202(wash Heater) relay together to supply the voltage to check heating element and the heater getting warm so heater is ok, but it seems relay RY202 is not working, RY202 is located on controller board(PBA) so I replaced PBA board, but it did not resolve the problem. I do not know the used board which I replaced is bad or there is some other problem. In the service manual, it is noted that if the water level is low the heater will not work but the water level looks okay.
Please help me if you know or have any experience or any suggestion to fix the problem.
Thank you so much
28-06-2020 12:26 PM
28-06-2020 05:25 PM
20-07-2020 11:11 PM
Based on service manual diagnostic prosedure I replaced controller board part number DD92-00041A that was a used board but nothing changed, so I replaced Assy Case Brake part number DD94-01091C. I repaced this part because based on service manual diag. says if the level of water in dishwasher is low which is detecting by this part, causing the heating element stop working. As I said before the problem is sanitizing is not working. At the end of washing cycle when I open the door the dishes are not hot like before.
Please help me if you know any other idea or solution.
Thank you
05-12-2020 07:45 PM - last edited 05-12-2020 08:10 PM
I purchased the main controller board, from Samsung parts, to make sure the part is new with no problem but nothing changed and still heater is not working, I measured the AC voltage after RY202 terminal which suppose to be 110 v.
but was close to zero volt, so it means the relay RY202 is not working.
Do you know which other components causing this relay not operating.
10-12-2020 05:26 PM
Hello,
I purchased the main controller board, from Samsung parts, to make sure the part is new with no problem but nothing changed and still heater is not working, I measured the AC voltage after RY202 terminal which suppose to be 110 v.
but was close to zero volt, so it means the relay RY202 is not working.
Do you know which other components causing this relay not operating?