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Error code reference

Maytag Oven Error Code F-43

Induction cooktop under voltage (Type 2 failure).

Maytag codesMaytag oven codes

Induction cooktop under voltage (Type 2 failure).

First step from the service manual

Unplug range or disconnect power, check AC voltage with multimeter; if above 196V replace IPS, if below 196V issue is abnormal supply voltage.

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

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What F-43 means on a Maytag oven

The F-43 error code on a Maytag induction oven indicates an under voltage condition on the induction cooktop, classified as a Type 2 failure. This means the Induction Power Supply (IPS) module has detected that the incoming AC voltage has dropped below the acceptable operating threshold. Induction cooktops require a stable and sufficient AC supply voltage to energize the high-frequency inverter circuits that generate the electromagnetic field for cooking. When voltage falls short, the IPS triggers this fault to protect both the electronics and the user from unpredictable operation.

The diagnostic threshold for this error is 196 volts AC. If the measured supply voltage at the range outlet is above 196V, the under voltage condition is being falsely reported, meaning the IPS module itself is likely faulty and needs replacement. If the measured voltage is actually below 196V, the problem lies outside the appliance with the household electrical supply, such as a weak circuit, a failing breaker, or a utility service issue.

Proper diagnosis requires unplugging the range or disconnecting power before taking any precautions, then using a calibrated multimeter to measure the AC voltage at the outlet or terminal block once power is restored. This reading determines whether the repair path involves replacing the IPS module or contacting an electrician to address the supply voltage problem. Attempting to operate an induction cooktop with chronically low supply voltage can cause additional component damage over time.

Source: manufacturer service documentation.

Common causes of F-43

  1. 01

    Faulty Induction Power Supply (IPS) module

    Part replacement

    If the outlet voltage measures above 196V AC but the F-43 error still appears, the IPS module is incorrectly sensing an under voltage condition and needs to be replaced. This is the most common hardware cause when the supply voltage tests within normal range.

  2. 02

    Low household supply voltage

    Wiring / connection

    If the outlet voltage measures below 196V AC, the home's electrical circuit is not delivering adequate power to the range. This can result from a weak or failing circuit breaker, an undersized circuit, or a utility supply issue affecting the panel.

  3. 03

    Failing or tripped circuit breaker

    Wiring / connection

    A breaker that is partially tripped or aging can cause voltage to sag on the circuit feeding the range. Inspecting the breaker panel for a breaker that appears tripped or feels loose can help identify this condition.

  4. 04

    Loose or corroded wiring connections

    Wiring / connection

    Poor connections at the outlet, terminal block, or within the range wiring harness can cause a voltage drop that registers as under voltage at the IPS. Inspecting connection points for corrosion, burning, or looseness can reveal this cause.

  5. 05

    Utility service voltage fluctuation

    Wiring / connection

    Temporary or ongoing low voltage from the utility provider can trigger this fault, especially during periods of high grid demand. If multiple appliances in the home show performance issues simultaneously, the utility supply should be investigated.

See the test procedure for each cause

Frequently asked questions about F-43

What does F-43 mean on a Maytag oven?
F-43 indicates an induction cooktop under voltage condition, classified as a Type 2 failure. The Induction Power Supply module has detected that the incoming AC voltage is insufficient for safe operation. The diagnostic threshold is 196V AC, and testing the outlet voltage determines whether the IPS module is faulty or the electrical supply is the root cause.
Can I fix the F-43 error myself?
Some steps are DIY-friendly, such as checking your circuit breaker and measuring the outlet voltage with a multimeter. If the voltage at the outlet reads above 196V AC, the IPS module needs replacement, which is a more advanced repair involving high-voltage components and is best handled by a qualified technician. If the voltage reads below 196V, you will need a licensed electrician to evaluate your home's electrical supply.
Is it safe to use my Maytag oven while the F-43 code is active?
It is not recommended to continue operating the induction cooktop while this error is present. Running induction electronics under insufficient voltage can cause additional damage to the IPS module and other internal components. The oven's baking functions may still be available, but the induction cooktop should remain off until the fault is resolved.
How much does it cost to repair a Maytag F-43 error?
Repair costs vary depending on the root cause. If the issue is a faulty IPS module, parts and labor typically fall in the range of $150 to $400 or more depending on your location and the specific part cost. If the problem is with your home's electrical supply, electrician fees for diagnosing and correcting breaker or wiring issues generally range from $75 to $300 or higher.
Will resetting the oven clear the F-43 error code?
Unplugging the range or disconnecting power can temporarily clear the F-43 code, but the error will return if the underlying cause is not corrected. If the IPS module is defective or the supply voltage remains below 196V, the fault will reappear once the cooktop attempts to operate. A reset alone is not a fix and should only be used as part of the diagnostic process.

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