Erik for Model Number mdc4650awb I ordered AP4114683 to replace my old broken one, and it leaks like a sieve from the faucet right out of the box. Your "live help" suggested AP4278680 needed to be ordered. I don't see how or why that would be needed. Any help would be appreciated.
Answer Hello Erik. You will need to check and make sure the coupler and hose assembly WP99001868 id attaching to the adapter WPW10254672 properly. If not, it will cause the unit to leak very badly. Also, make sure the hose assembly has the rubber insert inside the coupler. Hope this helps. Read More... Answered by AppliancePartsPros.com | Monday, January 23, 2012