Thomas D South Point , OH June 27, 2014 Appliance: General Electric Room Air Conditioner AEH18DLG1 Ge Air Conditioner Aeh18dlg1: I continued to get an ep error code on my ge a/c and it would not take signals from remote or the front panel. How to replace Main Pcb. Found the information and part on AppliancePros.com on Line and ordered it on line over-night shipping. The next day UPS delivered the part and I had it installed within the hour. A/C back working like new. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes