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Error code reference

GE Cooktop Error Code FA3

Fan2 is not running at the correct Low speed.

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Fan2 is not running at the correct Low speed.

First step from the service manual

Check wires connecting UI to Induction Tray. Check Fan, UI and induction Tray. Replace fan.

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

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What FA3 means on a GE cooktop

The FA3 error code on a GE induction cooktop indicates that Fan2 is not operating at the correct low speed. GE induction cooktops use dedicated cooling fans to manage heat generated by the induction electronics and power components. Fan2 is a secondary cooling fan assigned to a specific zone of the induction tray, and the control system continuously monitors fan speed using feedback signals. When the fan's actual speed at the low setting does not match the expected RPM range, the cooktop logs FA3 and may shut down the affected zone or the entire unit to prevent thermal damage.

The induction tray is the assembly that houses the induction coils and associated power electronics. Communication between the User Interface (UI) board and the induction tray travels through a wiring harness, and any break, short, or loose connector in that harness can disrupt the fan speed signal, causing the control board to register a fault even if the fan itself is functioning. This makes the wiring harness a critical first inspection point before condemning the fan or any board.

The most direct cause of FA3 is a failing or failed Fan2 motor. Fans can degrade over time due to bearing wear, debris accumulation, or thermal stress, causing them to run below the target low speed threshold. In some cases the fan may spin freely by hand but lack the torque to reach proper RPM under load. After verifying the wiring harness and connector integrity between the UI board and the induction tray, testing or replacing the fan is the recommended next step.

Source: manufacturer service documentation.

Common causes of FA3

  1. 01

    Faulty Fan2 motor

    Part replacement

    The Fan2 motor may have worn bearings or degraded windings that prevent it from reaching the required low speed. The fan might still spin when tested by hand but fail to achieve proper RPM under normal operating conditions.

  2. 02

    Loose or damaged wiring harness between UI and induction tray

    Wiring / connection

    A disconnected, pinched, or corroded connector in the harness linking the UI board to the induction tray can interrupt the fan speed feedback signal, triggering FA3 even if the fan motor itself is intact. Inspect all connectors along this harness for damage or poor seating.

  3. 03

    Debris or obstruction blocking Fan2

    Wiring / connection

    Food particles, grease buildup, or foreign objects lodged in the fan assembly can physically restrict blade rotation, causing the fan to run below the low speed threshold. Inspect the fan blades and surrounding area for any visible obstruction.

  4. 04

    Faulty UI board

    Part replacement

    If the UI board is not sending the correct control signal to Fan2 or is misreading the fan speed feedback, it can generate a false FA3 fault. This should be considered after the wiring and fan have been inspected and confirmed to be in good condition.

  5. 05

    Defective induction tray assembly

    Part replacement

    The induction tray contains the circuitry that powers and monitors the cooling fans. A failure within the tray's fan control circuitry can result in Fan2 not operating at the correct speed or not being driven properly at the low speed setting.

See the test procedure for each cause

Frequently asked questions about FA3

What does FA3 mean on a GE cooktop?
FA3 means the cooktop's control system has detected that Fan2 is not running at the correct low speed. Fan2 is one of the internal cooling fans that protects the induction electronics from overheating. The cooktop may disable itself to prevent heat damage until the issue is resolved. The fault can be caused by a failing fan motor, wiring problems, or a defective control board.
Can I fix the FA3 error on my GE cooktop myself?
Some basic checks, such as inspecting the wiring harness connectors between the UI board and the induction tray for looseness or visible damage, can be performed by a knowledgeable DIYer. However, actually replacing Fan2 or any control board requires disassembling the cooktop, which involves working near high-voltage components. If you are not experienced with appliance repair, this job is best handled by a qualified technician.
Is it safe to use my GE cooktop while the FA3 error is showing?
No, it is not recommended to continue using the cooktop while FA3 is active. The cooling fans are essential to keeping the induction electronics at a safe operating temperature. Running the cooktop without proper fan cooling can cause permanent damage to the induction tray components and creates a potential overheating risk.
Will resetting the cooktop clear the FA3 error?
A power reset, such as turning off the circuit breaker for 30 to 60 seconds and restoring power, may temporarily clear the FA3 code if it was triggered by a transient signal issue. However, if the underlying cause is a worn fan motor, loose wiring, or a faulty control board, the error will return during operation. A reset alone is not a repair.
How much does it cost to repair a GE cooktop FA3 error?
Repair costs depend on which component is at fault. A replacement cooling fan is typically the least expensive part, while a UI board or induction tray assembly can be significantly more costly. Adding professional labor, total repair costs can range from roughly $100 to $400 or more depending on the specific part needed and local service rates. Getting a diagnostic quote from a technician before authorizing parts replacement is advisable.

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