Larry O. for Model Number kuis18nnjs5 My ice maker makes good ice but a loud noise like a heart beat that last a long time. I can hear it some distance away it driving me nuts. I think it could be the water pump. The sound is more like bump a bump. I clean the unit several times but this does not help. Larry
Answer Hello Larry. Based on the information you provided, it sounds like the pump assembly. Check and see if the noise is coming from the pump assembly WP2217220. If so, you will need to replace the pump assembly on the unit. Hope this helps. Read More... Answered by AppliancePartsPros.com | Friday, December 16, 2011