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Error code reference

Kenmore Range Error Code 37

Heat sink temperature sensor break in the Induction Housing Assembly, left side cooking zones.

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Heat sink temperature sensor break in the Induction Housing Assembly, left side cooking zones.

First step from the service manual

Replace Left Side Generator Circuit Board.

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

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What 37 means on a Kenmore range

Error code 37 on a Kenmore induction range indicates a break or open circuit in the heat sink temperature sensor located within the left side induction housing assembly. This sensor monitors the thermal condition of the heat sink attached to the left side generator circuit board, which controls the left cooking zones. When the control system detects a loss of signal from this sensor, it triggers the fault code and disables the affected zones to prevent damage from unmonitored overheating.

The heat sink temperature sensor is a thermistor or thermocouple-style device integrated into or mounted directly on the heat sink of the left generator board. A "break" in this context means the sensor circuit has gone open, meaning continuity has been lost somewhere along the sensor lead, connector, or the sensor element itself. This prevents the control board from receiving any temperature reading, and rather than assume safe operating conditions, the system faults out as a protective measure.

The most direct path to resolution, as indicated by the diagnostic procedure, is replacement of the left side generator circuit board. This is because the sensor is often embedded in or sold as part of the generator board assembly, making individual sensor replacement impractical. However, technicians should also inspect the wiring harness and connectors between the sensor and the main control board for visible damage, pinched wires, or corroded terminals before committing to a full board replacement, as a wiring fault can produce the same error condition.

Source: manufacturer service documentation.

Common causes of 37

  1. 01

    Failed Left Side Generator Circuit Board

    Part replacement

    The heat sink temperature sensor is part of or tightly integrated with the left generator board assembly. A failed board is the most common source of this fault, and replacement of the board is the primary recommended repair.

  2. 02

    Open or Broken Sensor Lead Wire

    Part replacement

    The wiring connecting the heat sink sensor to the control system can develop a break due to heat cycling, vibration, or pinching. Inspecting the harness for visible breaks or continuity failures with a multimeter can confirm this cause.

  3. 03

    Loose or Corroded Connector

    Wiring / connection

    Connectors between the sensor and the main control board can loosen or corrode over time, creating an open circuit. Disconnecting and reseating connectors, then cleaning terminals, can sometimes resolve the fault.

  4. 04

    Damaged Heat Sink Sensor Element

    Part replacement

    The thermistor or sensor element itself may have cracked or burned out due to a thermal event or age. If accessible and testable separately, a sensor reading of infinite resistance indicates an open element.

See the test procedure for each cause

Frequently asked questions about 37

What does 37 mean on a Kenmore range?
Error code 37 on a Kenmore range indicates a break in the heat sink temperature sensor circuit within the left side induction housing assembly. This affects the left cooking zones, which will be disabled until the fault is corrected. The sensor monitors heat sink temperatures on the left generator board to protect the appliance from overheating. The recommended first step is replacing the left side generator circuit board.
Can I fix error code 37 on my Kenmore induction range myself?
A knowledgeable DIYer can inspect the wiring harness and connectors for visible damage and reseat any loose connections. However, if the left side generator circuit board has failed, that repair involves working inside the induction housing with high-voltage components and is best handled by a qualified appliance technician. Induction cooktops store dangerous charge even when unplugged, so appropriate caution is required.
Is it safe to use my Kenmore range while error code 37 is displayed?
The left cooking zones will typically be disabled when error code 37 is active, which limits your cooking options. While the right side zones may still function, it is not advisable to continue using the appliance with an active fault in the temperature monitoring system. Operating without a functioning heat sink sensor removes a key thermal protection safeguard.
Will resetting my Kenmore range clear error code 37?
Disconnecting power to the range for a few minutes may temporarily clear the display, but error code 37 will return as soon as the control system re-checks the sensor circuit and detects the open fault. A power reset does not repair a broken sensor circuit or failed board. Permanent resolution requires replacing the faulty component.
How much does it cost to repair error code 37 on a Kenmore range?
Repair costs vary depending on whether the issue is a wiring problem or a full board replacement. A left side generator circuit board typically costs somewhere in the range of $100 to $300 or more for the part alone, depending on the specific model. Adding professional labor, total repair costs can range from $150 to $500 or higher. Getting a diagnosis from a technician before ordering parts can help avoid unnecessary expenses.

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