Alfred T Bayville , NJ September 27, 2014 Appliance: Model LD451EGL Error code I have a lg dehumidifier that was showing a error code.First time ever worked on a dehumidifier.I was told i needed a sensor.You need take the shell off.The sensor sits in the front,follow the wires and remove now replace with new sensor. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes