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Error code reference

Frigidaire Cooktop Error Code E97

Heat sink temperature sensor break in the 2 cook zones induction module.

Frigidaire codesFrigidaire cooktop codes

Heat sink temperature sensor break in the 2 cook zones induction module.

First step from the service manual

Replace the generator circuit board in the 2 zones induction module.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What E97 means on a Frigidaire cooktop

Error code E97 on a Frigidaire induction cooktop indicates a break or open circuit in the heat sink temperature sensor associated with the 2-cook-zone induction module. The heat sink sensor is a thermistor or thermal cutoff device mounted directly to the heat sink of the induction module's power electronics. Its job is to monitor the temperature of the inverter components and prevent thermal damage during high-load cooking operations. When the control system detects an open circuit or out-of-range signal from this sensor, it triggers E97 and disables the affected zones to prevent damage.

The 2-zone induction module contains a generator circuit board that drives the induction coils and manages thermal protection logic. The heat sink sensor signal is fed directly into this board, and a broken sensor wire, failed thermistor, or damaged circuit trace on the board itself can all produce this fault code. Because the sensor circuit is integrated with the generator board's input logic, a sensor break often presents the same symptom as a board failure, making component-level diagnosis important before replacement.

The recommended first diagnostic step is replacing the generator circuit board within the 2-zone induction module. Before doing so, a technician should visually inspect the sensor wiring harness for breaks, pinched wires, or connector corrosion. If wiring checks out intact, the generator circuit board is the most likely failed component and should be replaced to restore proper thermal monitoring and cooktop operation.

Source: manufacturer service documentation.

Common causes of E97

  1. 01

    Failed generator circuit board

    Part replacement

    The generator circuit board in the 2-zone induction module processes the heat sink sensor signal. A failed input circuit on the board can read the sensor as an open break even if the sensor itself is intact.

  2. 02

    Broken or open heat sink sensor

    Part replacement

    The thermistor or thermal cutoff sensor mounted on the heat sink can fail internally, creating an open circuit that the control system interprets as a wiring break. Resistance testing of the sensor will show an out-of-range or infinite resistance reading if the sensor has failed.

  3. 03

    Damaged sensor wiring harness

    Wiring / connection

    The wire harness connecting the heat sink sensor to the generator circuit board can develop breaks, shorts, or pulled connectors due to vibration or heat exposure. Visual inspection along the full harness length and connector seating should be performed before replacing the board.

  4. 04

    Corroded or loose sensor connector

    Wiring / connection

    Moisture or heat cycling can cause the sensor connector pins to corrode or back out of their housing, creating an intermittent or permanent open circuit. Reseating and cleaning the connector may resolve the fault.

  5. 05

    Heat damage to sensor or board components

    Part replacement

    Prolonged high-load cooking or inadequate ventilation can cause thermal stress that damages the sensor, its solder joints on the board, or nearby circuit components. Visible discoloration or burnt areas on the board indicate this cause.

See the test procedure for each cause

Frequently asked questions about E97

What does E97 mean on a Frigidaire cooktop?
E97 indicates a break or open circuit in the heat sink temperature sensor for the 2-cook-zone induction module. This sensor monitors the temperature of the induction module's power electronics. When the cooktop cannot read a valid signal from this sensor, it disables the affected zones and displays E97 to prevent thermal damage.
Can I fix E97 myself or do I need a technician?
Some basic checks, such as inspecting the sensor wiring harness for visible breaks and reseating connectors, can be done by a knowledgeable DIYer who is comfortable working inside appliances with the power fully disconnected. However, replacing the generator circuit board inside the induction module is a more involved repair that requires disassembling the cooktop and handling sensitive electronics, so many homeowners choose to hire a technician for this step.
Is it safe to use my Frigidaire cooktop while E97 is displayed?
No. The cooktop disables the affected cook zones when E97 is active precisely because the thermal protection system for that module cannot function without a working heat sink sensor. Attempting to bypass this or continue using the cooktop could result in overheating of the induction module's components. The cooktop should remain out of service until the fault is resolved.
Will resetting the cooktop clear the E97 error code?
A power reset, such as turning off the circuit breaker for one to two minutes, may temporarily clear the display, but E97 will return as soon as the cooktop attempts to operate the 2-zone module and detects the sensor fault again. A reset does not repair the underlying open circuit in the sensor or wiring, so the code will persist until the defective component is replaced.
How much does it cost to repair a Frigidaire cooktop showing E97?
Repair costs vary depending on whether the issue is a simple wiring fix or requires a full generator circuit board replacement. Board replacement parts alone can range from roughly $80 to $200 or more depending on the specific model, with professional labor adding $100 to $250 on top of parts. Getting a diagnostic estimate from a certified technician before committing to the repair is a good idea, especially to confirm no additional components were damaged.

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