Frigidaire Cooktop Error Code E3

E3 on a Frigidaire cooktop means the left front zone control has a defective key sensor. The cooktop's main power control board detected an abnormal or missing signal from the touch sensor responsible for operating the left front burner zone. This fault is logged to alert the user and technician that the control or its wiring needs inspection.

It is best to avoid using the left front burner zone while the E3 error is active, as the key sensor fault means that zone may not respond correctly to your inputs. Other zones may still function normally, but continued use of a zone with a known control fault could lead to unpredictable behavior. Have the issue diagnosed and repaired before relying on the affected burner.

Resetting the cooktop by disconnecting power for a few minutes may temporarily clear the E3 error display, but if the underlying cause is a hardware fault in the key sensor or wiring, the error will return when the unit is powered back on. A reset is useful as a first step to confirm whether the fault is intermittent or persistent, but it does not fix a defective sensor or damaged cable.

Some causes of E3, such as a loose cable connector, can be addressed by a confident DIYer who is comfortable working with appliance electronics. However, accessing the internal connectors and control boards requires disassembling the cooktop, which involves working near electrical components. If you are not experienced with appliance repair, having a qualified technician perform the diagnosis and repair is recommended.

Repair costs vary depending on what component is at fault. A simple connector reseating may cost only a service call fee, typically in the range of $75 to $150. If the left front zone control assembly needs replacement, parts and labor combined can range from $150 to $350 or more depending on the specific model and local labor rates. A faulty main power control board would be at the higher end of repair costs.