Mike for Model Number MDB8979SFZ2 Dishwasher fills and drains fine but upper wash arm seems to be the only one that spins. Lower and middle wash arms do not. All lower components accessible from inside tub have been disassembled, cleaned and reinstalled. Is AP5984477 pump responsible for drain AND circulation of water through wash arms? If so, is pump replacement the likely solution or since the unit drains properly, do I have a valve/switch that is not operating correctly?
Answer Mike, Based on the information provided the pump and motor assembly would likely take care of the issue. WPW10591570 Read More... Answered by AppliancePartsPros.com | Thursday, August 26, 2021