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Error code reference

Electrolux Dryer Error Code EH2

Power supply voltage out of range (too HIGH)

Electrolux codesElectrolux dryer codes

Power supply voltage out of range (too HIGH) — power supply problems, wrong MCF, or main board error.

First step from the service manual

Check power supply voltage; verify MCF configuration.

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

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What EH2 means on a Electrolux dryer

The EH2 error code on an Electrolux dryer indicates that the power supply voltage has been detected as too high, falling outside the acceptable operating range for the appliance. The dryer's main control board continuously monitors incoming line voltage, and when that voltage exceeds the upper threshold, the board triggers this fault to protect internal components from damage. This is a voltage-sensing fault rooted in either the actual incoming power supply or in a misconfiguration of the machine control function (MCF) settings.

The most common hardware cause is a genuine overvoltage condition at the wall outlet or in the home's electrical panel. Dryers typically require a stable 240V supply in North American installations, and voltage spikes, utility fluctuations, or wiring issues can push that reading out of acceptable range. In some cases, the MCF configuration stored on the control board may be set incorrectly for the installed voltage type, causing the board to misinterpret a normal voltage reading as out-of-range.

If the incoming voltage checks out correctly and the MCF configuration is confirmed accurate, the fault may point to a failure in the main control board itself, where the voltage-sensing circuitry is producing erroneous readings. Diagnosis should begin with a calibrated multimeter measurement at the terminal block or outlet to confirm actual supply voltage before suspecting internal components.

Source: manufacturer service documentation.

Common causes of EH2

  1. 01

    High incoming line voltage

    Wiring / connection

    The actual voltage at the dryer's outlet or terminal block is elevated beyond the acceptable range. Measure the supply voltage with a multimeter at the wall outlet or terminal block to confirm whether an overvoltage condition exists.

  2. 02

    Incorrect MCF configuration

    Wiring / connection

    The machine control function settings on the control board may be programmed for the wrong voltage specification, causing a normal supply voltage to register as out of range. Verify and correct the MCF configuration according to the dryer's rated voltage requirements.

  3. 03

    Utility or grid voltage fluctuation

    Wiring / connection

    Temporary voltage surges from the utility supply can trigger this fault even if the supply is normally within range. Check with the utility provider or use a voltage monitor to identify intermittent overvoltage events.

  4. 04

    Faulty main control board

    Part replacement

    If supply voltage and MCF settings are both confirmed correct, the voltage-sensing circuitry on the main control board may be defective and reporting a false overvoltage reading. Replacing the main control board would be required to resolve this.

  5. 05

    Wiring or connection issue at the terminal block

    Wiring / connection

    Loose, corroded, or improperly wired connections at the dryer's terminal block can cause irregular voltage readings. Inspect all connections for secure contact, corrosion, and correct wiring configuration.

See the test procedure for each cause

Frequently asked questions about EH2

What does EH2 mean on a Electrolux dryer?
EH2 indicates that the dryer's control board has detected a power supply voltage that is too high, outside the acceptable operating range. This fault is designed to protect the appliance from damage caused by overvoltage conditions. The cause can be actual high voltage at the outlet, an incorrect MCF setting on the control board, or a failing main control board.
How do I fix the EH2 error on my Electrolux dryer?
Start by measuring the actual voltage at the dryer's wall outlet or terminal block using a multimeter to confirm whether an overvoltage condition is present. If the voltage is within the correct range, verify that the MCF configuration on the control board is set correctly for your dryer's rated voltage. If both checks pass without finding a problem, the main control board may need to be replaced.
Is it safe to use my Electrolux dryer when EH2 is displayed?
It is not recommended to continue operating the dryer while EH2 is active. The fault indicates a potentially damaging overvoltage condition, and running the appliance under those circumstances could harm the control board, motor, or other electronic components. Address the voltage issue before resuming use.
Will resetting my Electrolux dryer clear the EH2 error?
A reset may temporarily clear the EH2 fault, but if the underlying cause, such as high supply voltage or an incorrect MCF setting, has not been corrected, the error will return. Resetting without diagnosing and fixing the root cause is not a permanent solution and may allow repeated exposure to damaging voltage levels.
How much does it cost to repair an EH2 error on an Electrolux dryer?
Repair costs vary depending on the root cause. If the issue is a wiring correction or MCF reconfiguration, costs may be minimal, primarily covering a service call in the range of $75 to $150. If the main control board needs replacement, parts and labor combined can range from $200 to $450 depending on the specific model and labor rates in your area. An electrician may also be needed if the overvoltage originates from the home's electrical system.

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