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Error code reference

GE Cooktop Error Code FA6

Low or high line voltage.

GE codesGE cooktop codes

Low or high line voltage.

First step from the service manual

Check line voltage. Replace Induction Tray.

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

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  • Step-by-step tests with expected resistance, voltage, and continuity values
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What FA6 means on a GE cooktop

The FA6 error code on a GE induction cooktop indicates that the unit has detected a line voltage condition outside its acceptable operating range. This means the incoming AC supply voltage is either too low or too high for safe and proper induction operation. Induction cooktops are sensitive to voltage fluctuations because the power inverter circuits that drive the induction coils require stable voltage to regulate power output accurately. When the control detects a voltage deviation beyond its threshold, it triggers FA6 and halts operation to prevent component damage.

The induction tray is the primary component involved in this fault. The induction tray houses the coil assemblies and the associated power electronics that monitor and respond to line voltage conditions. If the incoming voltage is genuinely out of range, the tray's internal circuitry will register the fault. However, a failed or failing induction tray can also produce a false FA6 reading even when line voltage is within specification, because a degraded sensing circuit inside the tray may misread the incoming supply.

Diagnosing FA6 correctly requires measuring the actual line voltage at the cooktop's supply circuit before condemning any parts. A standard 240V induction cooktop should read between approximately 210V and 250V under load. If the measured voltage is within range and the error persists, the induction tray itself is the likely cause and should be replaced.

Source: manufacturer service documentation.

Common causes of FA6

  1. 01

    Low or high supply voltage from home electrical system

    Wiring / connection

    The most frequent trigger for FA6 is an actual voltage problem at the wall circuit. Voltage sags from overloaded panels, long runs of undersized wiring, or utility fluctuations can all push the supply voltage outside the cooktop's acceptable range.

  2. 02

    Faulty induction tray

    Part replacement

    If line voltage measures within spec but FA6 persists, the induction tray's internal voltage-sensing circuit is likely defective. A degraded or failed tray will generate this fault even under normal supply conditions and must be replaced.

  3. 03

    Loose or corroded wiring connections

    Wiring / connection

    Poor connections at the terminal block or junction box can cause voltage drop and intermittent FA6 faults. Inspect all supply wiring connections for tightness and signs of corrosion or heat damage.

  4. 04

    Tripped or weak circuit breaker

    Part replacement

    A breaker that has partially tripped or is beginning to fail can deliver reduced voltage to one leg of a 240V circuit. This creates a voltage imbalance that the cooktop's control system reads as an out-of-range condition.

  5. 05

    Shared circuit with high-draw appliances

    Wiring / connection

    If the cooktop shares a circuit or is on an undersized breaker, simultaneous use of other high-draw appliances can cause voltage to drop enough to trigger FA6. The cooktop should be on a dedicated circuit sized to its rated amperage.

See the test procedure for each cause

Frequently asked questions about FA6

What does FA6 mean on a GE cooktop?
FA6 is a line voltage fault code indicating the cooktop has detected an incoming AC supply voltage that is either too low or too high for safe operation. The cooktop monitors line voltage through the induction tray and shuts down when voltage falls outside the acceptable range. The issue can stem from the home's electrical supply or from a failed induction tray that is misreading the voltage.
How do I fix the FA6 error on my GE induction cooktop?
Start by measuring the line voltage at the cooktop's supply circuit using a multimeter to confirm whether the voltage is actually out of range. If voltage is low or high, contact a licensed electrician to address the supply issue. If voltage measures correctly and the error persists, the induction tray will need to be replaced, as the diagnostic process points to that component when line voltage checks out.
Is it safe to use my GE cooktop while the FA6 code is showing?
No, you should not attempt to operate the cooktop while FA6 is active. The code indicates a voltage condition that could damage internal components or create an unsafe operating condition. The cooktop's control system disables the unit for this reason, and operation should not resume until the root cause is identified and corrected.
Will resetting the cooktop clear the FA6 error?
A reset may temporarily clear the FA6 code, but the error will return if the underlying voltage problem or faulty induction tray has not been addressed. To reset, disconnect power to the cooktop at the circuit breaker for at least 30 seconds and restore power. If FA6 comes back immediately or after a short period, proceed with the full diagnostic process.
How much does it cost to repair a GE cooktop FA6 error?
Repair costs vary depending on the root cause. If the problem is a wiring or electrical supply issue, electrician labor can range from $75 to $200 or more depending on complexity. If the induction tray requires replacement, parts and labor combined typically range from $150 to $400 or higher depending on the specific model and local service rates. Getting a diagnostic assessment before committing to repairs is recommended.

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