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Error code reference

Electrolux Dryer Error Code H2

Power supply amplitude out of range (too HIGH voltage).

Electrolux codesElectrolux dryer codes

Power supply amplitude out of range (too HIGH voltage).

First step from the service manual

Check for power supply problems (too high voltage) or main board failure.

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

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What H2 means on a Electrolux dryer

The H2 error code on an Electrolux dryer indicates that the control system has detected a power supply amplitude that exceeds the acceptable operating range. In other words, the incoming AC voltage to the dryer is reading too high. The main control board continuously monitors line voltage as part of its self-diagnostic routine, and when the measured amplitude surpasses the upper threshold the board expects, it triggers the H2 fault and halts operation to prevent component damage.

High voltage conditions can originate from several points in the electrical supply chain. A utility voltage surge, a malfunctioning utility transformer on your street, or a wiring fault within the home's electrical panel can all push line voltage above the dryer's rated operating range. In some cases, a miswired 240-volt outlet or a failing neutral connection can create a voltage imbalance that causes one leg of the supply to read abnormally high. These conditions are dangerous not only to the appliance but also to other household electronics.

If the incoming voltage tests within normal range and the error persists, the main control board itself may be misreading the supply voltage due to a faulty voltage-sensing circuit on the board. In that scenario, the board is generating a false H2 fault. Distinguishing between a genuine high-voltage supply problem and a failed control board is the central diagnostic challenge with this code, and it requires measuring actual line voltage at the outlet with a multimeter before condemning any parts.

Source: manufacturer service documentation.

Common causes of H2

  1. 01

    High utility or household line voltage

    Wiring / connection

    The incoming voltage at the dryer's outlet exceeds the acceptable range. This can be caused by a utility grid surge, a failing transformer, or a wiring fault in the home's electrical panel. Measure voltage at the outlet with a multimeter to confirm.

  2. 02

    Miswired or faulty 240V outlet

    Wiring / connection

    An incorrectly wired dryer receptacle can create an unbalanced voltage condition where one leg reads significantly higher than normal. Inspect the outlet wiring and verify both legs of the 240V supply are correct and balanced.

  3. 03

    Failed or open neutral connection

    Wiring / connection

    A loose or broken neutral wire in the outlet, junction box, or electrical panel can cause voltage on one leg to spike well above normal. This is a common source of high-voltage readings on 240V appliances and should be inspected by a qualified electrician.

  4. 04

    Faulty main control board

    Part replacement

    If line voltage at the outlet measures within normal range but the H2 code persists, the voltage-sensing circuit on the main control board may have failed, causing it to report a false high-voltage fault. Replacing the control board would be required to resolve this.

See the test procedure for each cause

Frequently asked questions about H2

What does H2 mean on a Electrolux dryer?
The H2 code means the dryer's control board has detected that the incoming power supply voltage is too high, exceeding the acceptable amplitude range. The dryer shuts down automatically to protect its internal components. The fault points either to a genuine high-voltage condition at the electrical supply or to a failed control board that is misreading the voltage.
Can I fix the H2 error myself?
Some steps are DIY-friendly, such as measuring the outlet voltage with a multimeter to check whether the supply voltage is actually out of range. However, any work involving the electrical panel, outlet wiring, or neutral connections should be handled by a licensed electrician. If the supply voltage is normal and the main control board needs replacement, a technician familiar with Electrolux dryers is recommended for that repair.
Is it safe to keep using my dryer when H2 is displayed?
No, you should not continue operating the dryer while the H2 code is active. Sustained high voltage can damage the control board, motor, and other electronic components. If the voltage at your outlet is genuinely too high, it also poses a risk to other appliances and electronics in your home. Stop using the dryer and investigate the power supply before restarting it.
Will resetting the dryer clear the H2 error code?
A reset may temporarily clear the code, but if the underlying cause is not corrected, the H2 fault will return. If the supply voltage remains too high, the control board will detect it again and re-trigger the error. A reset is only useful as a step after you have confirmed and corrected the root cause, such as after resolving a wiring issue or replacing a faulty control board.
How much does it cost to repair an H2 error on an Electrolux dryer?
Repair costs vary depending on the root cause. If the problem is a utility or wiring issue, an electrician's service call to diagnose and correct the wiring typically runs in the range of $75 to $250 or more depending on the complexity. If the main control board has failed and requires replacement, parts and labor combined can range from $150 to $400 or higher depending on the specific board and local labor rates.

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