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Error code reference

Fisher & Paykel Oven Error Code F3

The oven temperature was sensed at over 600°F (315°C) during normal cooking operation.

Fisher & Paykel codesFisher & Paykel oven codes

The oven temperature was sensed at over 600°F (315°C) during normal cooking operation.

First step from the service manual

Check for temperature sensor faults (refer to Section 5.23).

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

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What F3 means on a Fisher & Paykel oven

The F3 error code on a Fisher & Paykel oven indicates that the oven's temperature monitoring system detected an internal cavity temperature exceeding 600°F (315°C) during a standard cooking cycle. This threshold is significantly above normal baking and roasting temperatures, and the control board triggers F3 as a protective fault to prevent damage to internal components or a potential safety hazard. The oven will typically shut down the heating circuit when this code appears.

The temperature sensing system relies on a resistance temperature detector, commonly called an RTD sensor or oven temperature sensor, mounted inside the oven cavity. This sensor changes its electrical resistance in proportion to temperature. If the sensor itself develops a fault, such as a short circuit or degraded resistance characteristics, it can report a false high temperature reading to the control board even when the actual cavity temperature is within a safe range. Section 5.23 of the diagnostic procedure focuses specifically on evaluating this sensor for faults.

Beyond a faulty sensor, the condition can also result from a legitimately overheated oven caused by a runaway heating element, a failed relay on the control board that keeps the element energized beyond the setpoint, or poor door seal integrity causing calibration issues. Distinguishing between a true overheat event and a false reading from a defective sensor is the critical first step in resolving this fault correctly.

Source: manufacturer service documentation.

Common causes of F3

  1. 01

    Faulty oven temperature sensor (RTD)

    Part replacement

    The temperature sensor can develop an internal short or resistance drift that causes it to report an artificially high temperature to the control board, triggering F3 even when the oven is not actually overheated. Checking the sensor's resistance value against specification is the recommended first diagnostic step.

  2. 02

    Stuck relay on the control board

    Part replacement

    A relay on the electronic control board that controls the heating element can fail in the closed position, allowing the element to run continuously without cycling off. This causes the oven cavity to reach genuinely excessive temperatures and trigger the F3 fault.

  3. 03

    Shorted or runaway heating element

    Part replacement

    A bake or broil element that has partially shorted internally may draw excessive power and generate more heat than the control system can manage, causing a true overheat condition. Inspect the element visually for burn marks, blistering, or visible damage.

  4. 04

    Damaged sensor wiring or connectors

    Wiring / connection

    Wiring harness damage, corroded connector pins, or a pinched wire between the temperature sensor and the control board can create a short that mimics an over-temperature reading. Inspect the sensor wiring for visible damage and check connector seating.

  5. 05

    Compromised oven door seal

    Part replacement

    A worn or damaged door gasket can allow excessive heat to escape and cause the oven to run longer heating cycles to compensate, which in combination with other minor faults can contribute to elevated cavity temperatures. Inspect the gasket for tears, gaps, or hardening.

See the test procedure for each cause

Frequently asked questions about F3

What does F3 mean on a Fisher & Paykel oven?
The F3 code means the oven's control system detected a cavity temperature above 600°F (315°C) during a normal cooking operation, which is beyond the safe operating threshold. The oven shuts down the heating circuit as a protective response. This can be caused by a genuinely overheated oven or by a faulty temperature sensor sending an incorrect reading to the control board. Diagnosing the temperature sensor is the recommended starting point.
Is it safe to use my Fisher & Paykel oven when it shows F3?
You should not continue using the oven while F3 is active. The fault indicates either a true overheat condition or a sensor failure, both of which require diagnosis before the appliance is safe to operate. Running the oven with a stuck relay or runaway element presents a genuine fire risk. Stop using the oven until the root cause has been identified and corrected.
Will resetting the oven clear the F3 error code?
Resetting the oven by cutting power at the breaker may temporarily clear the F3 code, but the fault will almost certainly return if the underlying cause has not been addressed. If the error reappears immediately or early in the next cooking cycle, a component fault such as a defective sensor or a failed control board relay is likely present. A reset is useful for confirming the fault is persistent, but it is not a repair.
How do I fix the F3 error on my Fisher & Paykel oven?
Begin by inspecting and testing the oven temperature sensor, as this is the most common cause of F3. If the sensor's resistance values are out of specification or the wiring shows damage, replacing the sensor is the likely fix. If the sensor tests correctly, the control board relay and the heating elements should be evaluated next. A qualified technician with access to the diagnostic procedures in Section 5.23 can systematically isolate the fault.
How much does it cost to repair a Fisher & Paykel oven showing F3?
Repair costs vary depending on the failed component. A replacement temperature sensor is typically the least expensive fix, with parts generally ranging from $30 to $80 and labor adding $75 to $150 depending on your market. A control board replacement is more costly, with parts alone often ranging from $150 to $350 or more. Heating element replacement falls somewhere in between. Getting a diagnostic assessment first helps avoid replacing parts unnecessarily.

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