Frigidaire Cooktop Error Code E52

E52 indicates a break or open circuit in the temperature sensor for the left rear heating element. The cooktop monitors this sensor continuously to regulate heat and prevent overheating. When the generator circuit board detects no valid signal from the sensor, it triggers E52 and disables the affected burner. The fault points to either a disconnected connector, a failed sensor, or a wiring issue between the sensor and the board.

The left rear burner will be disabled while the E52 fault is active, which means you cannot use that element. The cooktop protects itself by shutting down the affected zone rather than allowing unmonitored heating. You should avoid attempting to bypass this safety feature and have the sensor issue repaired before resuming normal use of that burner.

Repair costs depend on which component has failed. If only the connector needs reseating, there may be no parts cost, though a service call typically runs between 75 and 150 dollars. A replacement temperature sensor is generally an affordable part, while a new generator circuit board is more expensive, with total repair costs for a board replacement potentially ranging from 200 to 400 dollars or more depending on labor rates in your area.

If you are comfortable accessing the underside of the cooktop, you can start by checking whether the sensor connector to the generator circuit board is firmly seated, as a loose connection is the most common cause. Beyond reseating the connector, diagnosing a failed sensor or damaged wiring requires a multimeter to test continuity and some familiarity with appliance wiring. If you are not comfortable working with appliance internals, a qualified technician should perform the diagnosis.

A power reset by unplugging the cooktop or switching off the circuit breaker for a few minutes may temporarily clear the fault display, but the E52 code will return if the underlying sensor break or connection problem has not been corrected. A reset is not a repair and should only be used as part of the diagnostic process.