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Error code reference

Fisher & Paykel Cooktop Error Code F11.3

Trivet/Valve fault

Fisher & Paykel codesFisher & Paykel cooktop codes

Trivet/Valve fault - Valve switch is open and the upper trivet switch says the trivets are not fully up, for more than 6 seconds.

First step from the service manual

Check trivet micro-switches and gas valve switch.

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

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What F11.3 means on a Fisher & Paykel cooktop

The F11.3 error code on a Fisher & Paykel cooktop indicates a Trivet/Valve fault. Specifically, the control system has detected a conflict between two switch inputs: the gas valve switch is reading as open (no gas valve actuation confirmed), while the upper trivet switch simultaneously reports that the trivets are not in the fully raised position. This disagreement between the two switch states must persist for more than 6 seconds before the fault is triggered, meaning brief or transient switch signal inconsistencies will not immediately set the code.

The trivet and valve switch system works together to confirm that the cooktop's mechanical components are in the correct position before or during gas delivery. The upper trivet switch monitors whether the trivets have reached their fully raised position, and the valve switch confirms the state of the gas valve. When the logic controller sees the valve switch open while the trivet switch reports trivets are not fully up, it interprets this as a potentially unsafe or mechanically failed condition and halts normal operation by triggering F11.3.

The most likely causes involve the micro-switches themselves. Trivet micro-switches can fail due to physical wear, debris contamination, or misalignment that prevents them from actuating correctly when the trivets are raised. The gas valve switch can similarly fail electrically or become mechanically stuck. Wiring harness issues, including loose connectors or damaged wiring between the switches and the control board, can also produce this fault. Thorough inspection of both the trivet micro-switches and the gas valve switch, along with their associated wiring, is the correct starting point for diagnosis.

Source: manufacturer service documentation.

Common causes of F11.3

  1. 01

    Faulty trivet micro-switch

    Part replacement

    The upper trivet micro-switch may have worn out, become contaminated with grease or debris, or shifted out of alignment so it no longer actuates properly when the trivets are raised. Testing the switch for continuity and correct actuation will confirm whether it has failed.

  2. 02

    Faulty gas valve switch

    Part replacement

    The gas valve switch may be electrically open due to internal failure or mechanical damage, causing the control board to receive an incorrect open-circuit signal. Checking for continuity across the valve switch contacts during normal operation will identify this fault.

  3. 03

    Loose or damaged wiring connections

    Wiring / connection

    A loose connector, corroded terminal, or damaged wire in the harness connecting the trivet switches or valve switch to the control board can interrupt the signal and trigger this fault without any switch actually failing. Inspect all connectors and wiring leading to both switches.

  4. 04

    Trivet physically obstructed or misaligned

    Wiring / connection

    If the trivets are physically prevented from reaching their fully raised position by debris, a dropped utensil, or a mechanical obstruction, the trivet switch will never actuate correctly. Visually inspect the trivet mechanism for blockages or misalignment before replacing any components.

  5. 05

    Control board fault

    Part replacement

    In rare cases where both switches and all wiring test correctly, the control board itself may be misreading the switch inputs due to an internal fault. This is the least likely cause and should only be considered after all other components have been ruled out.

See the test procedure for each cause

Frequently asked questions about F11.3

What does F11.3 mean on a Fisher & Paykel cooktop?
F11.3 is a Trivet/Valve fault code. It means the cooktop's control system detected that the gas valve switch is open while the upper trivet switch reports the trivets are not fully raised, and this condition lasted for more than 6 seconds. The cooktop shuts down to prevent unsafe operation. Diagnosis requires checking both the trivet micro-switches and the gas valve switch.
Can I fix the F11.3 error myself?
Some basic checks are accessible to a knowledgeable DIYer, such as inspecting for physical obstructions around the trivets, checking for obvious wiring damage, and ensuring connectors are secure. However, testing micro-switch continuity and diagnosing gas valve switch issues correctly requires a multimeter and comfort working around gas appliance components. If you are not experienced with gas appliance repair, a qualified technician should perform this diagnosis.
Is it safe to use my cooktop while the F11.3 code is active?
No, you should not attempt to bypass or continue using the cooktop while F11.3 is active. This fault involves the gas valve switch and trivet position switch, which are part of the cooktop's safety interlock system. Operating the cooktop with a compromised safety switch circuit could create a hazardous condition. Keep the cooktop off until the fault has been properly diagnosed and repaired.
Will resetting the cooktop clear the F11.3 error code?
A power reset may temporarily clear the fault display, but the code will return if the underlying switch fault is still present. Because the error requires the conflicting switch condition to persist for more than 6 seconds, the fault will reappear as soon as the cooktop detects the same disagreement between the trivet switch and valve switch again. A reset is not a fix and should only be used as part of the diagnostic process.
How much does it cost to repair an F11.3 error on a Fisher & Paykel cooktop?
Repair costs depend on which component has failed. Replacing a trivet micro-switch or gas valve switch is generally a lower-cost repair, with parts typically ranging from a modest amount up to several tens of dollars, plus labor. If the control board is at fault, costs will be significantly higher. A diagnostic service call alone can range from $75 to $150 or more depending on your location, and total repair costs including parts and labor typically fall between $100 and $400 for switch-related faults.

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