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Error code reference

GE Range Error Code 210

Cavity 1 thermal runaway when unlocked

GE codesGE range codes

Cavity 1 thermal runaway when unlocked — cavity temperature exceeds 650°F while the door is unlocked.

First step from the service manual

Press cancel to reset system. Check RTD sensor; system may be overheated.

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

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What 210 means on a GE range

Error code 210 on a GE range indicates a cavity 1 thermal runaway condition detected while the oven door is in the unlocked position. Thermal runaway occurs when the oven cavity temperature rises beyond 650°F without being commanded to do so by the control board, or when the temperature climbs uncontrollably and exceeds that threshold. This is a protective fault designed to shut down heating operations before unsafe temperatures damage internal components or create a fire hazard. The fault is specific to cavity 1, which is the primary oven compartment on single or double-oven configurations.

The RTD sensor (Resistance Temperature Detector) is the primary component involved in this fault. The RTD monitors cavity temperature by changing its electrical resistance in response to heat. If the RTD is reading incorrectly due to a short, drift in calibration, or physical damage, the control board may receive inaccurate temperature data and allow heating elements to continue energizing past the safe threshold. Alternatively, a stuck relay on the control board can keep a bake or broil element energized continuously, driving the cavity temperature up regardless of what the RTD is reporting.

The first diagnostic step is to press the Cancel button to reset the system and allow the oven to cool down. Once the cavity has cooled to a safe temperature, check the RTD sensor for proper resistance values and inspect its wiring harness for shorts or loose connections. Also inspect the control board for signs of relay failure, such as burn marks or components that appear heat-damaged. If the oven was genuinely overheated rather than experiencing a sensor fault, the root cause may be a runaway relay rather than a faulty RTD.

Source: manufacturer service documentation.

Common causes of 210

  1. 01

    Faulty RTD temperature sensor

    Part replacement

    A failing RTD sensor can send inaccurate resistance readings to the control board, causing it to misread the actual cavity temperature and allow the oven to overheat. Check the sensor for correct resistance values and inspect its wiring for shorts or breaks.

  2. 02

    Stuck relay on the control board

    Part replacement

    A welded or stuck relay on the control board can keep a heating element energized continuously, driving cavity temperatures past safe limits regardless of thermostat settings. This is often identified by the oven heating when it should be off or by visual burn marks on the board.

  3. 03

    RTD wiring harness short or damage

    Wiring / connection

    Damaged insulation or a short in the wiring between the RTD sensor and the control board can cause erroneous temperature signals. Inspect the full length of the harness for pinching, melting, or corrosion at connectors.

  4. 04

    Actual oven overheating from external cause

    Wiring / connection

    In some cases the oven may have genuinely reached or exceeded 650°F due to extended high-temperature cooking, self-clean cycle issues, or blocked ventilation. If the oven felt or smelled unusually hot before the error appeared, overheating may be the direct cause rather than a sensor fault.

  5. 05

    Failed or miscalibrated control board

    Part replacement

    If the control board itself has degraded, it may command excessive heat output or fail to respond to RTD feedback correctly. This is typically diagnosed after the RTD and wiring have been ruled out as the source of the fault.

See the test procedure for each cause

Frequently asked questions about 210

What does 210 mean on a GE range?
Error code 210 on a GE range indicates that the primary oven cavity temperature exceeded 650°F while the door was in the unlocked position, triggering a thermal runaway fault. The oven shuts down heating operations as a safety measure when this condition is detected. The fault points to a possible issue with the RTD temperature sensor, the control board relay, or the wiring between those components.
Will pressing Cancel clear the 210 error code on a GE range?
Pressing Cancel is the recommended first step and may reset the error code temporarily, allowing the system to restart. However, if the underlying cause such as a faulty RTD sensor or a stuck relay is not corrected, the code is likely to return during the next use. A reset alone is not a permanent fix and should be followed by a proper inspection of the temperature sensing system.
Is it safe to use my GE range while error code 210 is active?
You should not continue using the oven while this fault is present. Error code 210 indicates the cavity temperature reached an unsafe level, and continued use without diagnosis could result in damage to internal components or create a fire risk. Allow the oven to cool fully before any inspection, and do not operate it until the root cause has been identified and repaired.
How much does it cost to repair a GE range showing error code 210?
Repair costs depend on the failed component. An RTD sensor replacement typically runs between $20 and $80 for the part, plus labor if a technician is hired. A control board replacement is more expensive, generally ranging from $150 to $400 or more for the part alone depending on the model. Diagnostic service calls from a technician usually add $75 to $150 on top of parts and labor.
What should I check first when my GE range shows error code 210?
Start by pressing Cancel to reset the system and allow the oven cavity to cool down completely before touching any components. Once cooled, inspect the RTD sensor and its wiring harness for visible damage, loose connections, or signs of heat stress. If the wiring looks intact, the next step is testing the RTD sensor resistance and checking the control board for any signs of relay failure such as burn marks or components that appear damaged.

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