mypros+
Error code reference

Electrolux Dryer Error Code HE

Line safe error

Electrolux codesElectrolux dryer codes

Line safe error — line safe relay problem (main board failure).

First step from the service manual

Replace main board.

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

MyPros+ Max

Get the full diagnostic procedure for HE.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What HE means on a Electrolux dryer

The HE error code on an Electrolux dryer indicates a line safe relay problem, which the control system classifies as a line safe error. The line safe relay is a critical safety component integrated into the main control board. Its primary function is to interrupt power to heating elements and other high-voltage circuits when potentially dangerous operating conditions are detected. When the control board's internal monitoring logic determines that this relay has failed, is stuck in an incorrect state, or is not responding as expected, it triggers the HE fault and halts dryer operation to prevent electrical hazards.

Because the line safe relay is physically part of the main control board assembly rather than a standalone, field-replaceable component, a failure in this relay circuit is treated as a main board failure. The board continuously monitors the relay's switching behavior during operation. If the relay fails to open or close on command, develops high contact resistance, or if the driver circuit controlling it becomes damaged, the board detects the discrepancy and flags the HE code. Contributing factors can include voltage spikes from the power supply, prolonged overheating inside the dryer cabinet, or general component degradation over time.

The prescribed first diagnostic step is direct replacement of the main control board, since the relay circuit cannot be isolated or repaired independently in the field. Before replacing the board, technicians should verify that incoming line voltage is within the correct range and that there are no wiring harness issues between the board and connected loads, as unusual electrical conditions could stress the relay and cause recurring failures after a board swap.

Source: manufacturer service documentation.

Common causes of HE

  1. 01

    Failed main control board relay circuit

    Part replacement

    The line safe relay on the main board has failed internally, either stuck open, stuck closed, or with degraded contacts. Since the relay is part of the board assembly, the entire main board must be replaced.

  2. 02

    Voltage spike or power surge damage

    Part replacement

    A surge in the household electrical supply can damage the relay driver circuit or the relay itself on the main board. Inspect the board for visible burn marks or component damage near the relay area.

  3. 03

    Overheating of the control board

    Part replacement

    Prolonged exposure to elevated temperatures inside the dryer cabinet can degrade solder joints and electronic components on the main board, leading to relay circuit failure. Check that the dryer's exhaust vent is clear and airflow is not restricted.

  4. 04

    Wiring harness fault between board and load circuits

    Wiring / connection

    A short or open circuit in the wiring harness connecting the main board to heating or motor circuits can place abnormal electrical stress on the relay. Inspect harness connectors for corrosion, melting, or loose terminals before installing a new board.

See the test procedure for each cause

Frequently asked questions about HE

What does HE mean on a Electrolux dryer?
The HE code on an Electrolux dryer stands for a line safe relay error, indicating that the main control board has detected a fault in its internal safety relay circuit. This relay is responsible for safely switching power to critical dryer components. Because the relay is integrated into the main board, the board itself must be replaced to resolve the error. The dryer will not operate normally until this fault is corrected.
Can I fix the HE error on my Electrolux dryer myself?
Resolving the HE error requires replacing the main control board, which is a task that experienced DIYers comfortable working with appliance electronics can attempt. You should disconnect power to the dryer completely before beginning any repair. However, because this fault involves the high-voltage safety relay circuit, many homeowners prefer to have a qualified technician perform the replacement to ensure the repair is done safely and correctly.
Is it safe to use my Electrolux dryer when it shows the HE error?
No, you should not continue operating the dryer while the HE error is active. The line safe relay is a protective component designed to interrupt power under unsafe conditions, and a fault in this circuit means that safety function cannot be guaranteed. Stop using the dryer and have the main board replaced before resuming operation.
How much does it cost to fix the HE error on an Electrolux dryer?
The cost to repair an HE error depends on whether you use a professional technician or replace the part yourself. A replacement main control board for an Electrolux dryer typically costs somewhere in the range of $100 to $300 for the part alone, depending on the specific model. If you hire a technician, expect total repair costs including labor to range from $200 to $450 or more.
Will resetting my Electrolux dryer clear the HE error code?
A power reset will generally not permanently clear the HE error because the fault is caused by a hardware failure in the main board's relay circuit, not a temporary software glitch. The code may disappear briefly after cycling power, but it will return as soon as the dryer attempts to operate and the control system re-detects the relay problem. The main control board must be replaced to actually resolve the fault.

Related Electrolux dryer codes

All Electrolux dryer codes
View all 209 Electrolux dryer codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass