Mitchell L Palm Coast , FL July 17, 2015 Appliance: Electrolux Dishwasher EIDW6305GS1A Electrolux Dishwasher Eidw6305gs1a: My electrolux dishwasher flashed "er 04" at the end of each cleaning and the dishes were clean but did not dry. How to replace Vent Assembly. I looked up error code 04 in the owners manual and read "the drying damper is not operational". I then went on AppliancePartsPros.com and chatted with an agent online to discuss the problem. I was extremely impressed with how customer-service oriented the agent was (Robin H. was the agent's name), who recommended ordering only the part of the drying damper most likely to be the cause of the problem, thus costing me the least amount of money. However, since I had already read several blogs about how unreliable Electrolux dishwashers are and how, when the drying damper goes bad, usually the entire drying damper unit needs to be replaced, I ordered a completely new drying damper and replaced the old one. Now it works fine. I ordered the part early in the afternoon and, to my amazement, the part arrived via FedEx the very next morning without even the need of ordering the part 1-day delivery; and the S & H charge was minimal. This is the first time using AppliancePartsPros.com and I could not be more satisfied with every aspect of the ordering and delivery process. There is no question at all I will use this company for any appliance issues in the future. 22 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes