GE Air Conditioner Fault Codes List: General Electric Air Conditioner Error Codes Error Codes Problem-Repair E0 On 70 Pint models only - when water is not pumped out while the unit is running under the Pump mode, E0 and the pump light will flash on the display. E1 Electronic control board function error. Unplug the window air conditioner for 1 minute and then plug it back in to reset the electronic control board. If the code doesn’t clear, unplug the window air conditioner and check the wire harness connections on the electronic control board. Check the electronic control board for visible damage such as a burn mark. Replace the electronic control board if it’s damaged or defective. E4 Water bucket is full or defective bucket float switch. If the collection bucket is full, empty the bucket. If the bucket isn’t full, unplug the air conditioner and check the wire harness connections on the electronic control board. Check for a pinched or damaged wire in the wire harness between the...