Ответ на "How do I clear or fix an E4 error code"We just installed a garbage disposal. There is a knockout plug on the body of the garbage disposal that the dishwasher drain line attaches to. We’ve had this problem before and a plumber told us about it. This time, we forgot to knock out the plug and it caused our dishwasher to send a error code of E-4. Once I knocked out the plug and reconnected the drain hose to the garbage disposal the dishwasher code remained on. At this point the only thing we’ve seen we can do now is disconnect the power to the dishwasher to reset the code. So far no luck but we will wait a full 24 hours. This is a new dishwasher. I would be very surprised if it failed one month into use.