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Error code reference

Electrolux Washer Error Code EH4

Zero Watt relay alarm

Electrolux codesElectrolux washer codes
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What the EH4 error code actually means

The EH4 code means your Electrolux washer has detected a problem with a special relay that controls how the machine manages power when it is not in use. The washer is staying on when it should be switching to a low-power state, which signals that something in this power control circuit has stopped working. This is not a problem you can fix by simply unplugging and restarting the machine, as it typically requires inspection or replacement of internal components.

Diagnostic procedure

The full EH4 procedure

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First diagnostic step
Check main board.
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Most common causes of EH4

Ranked by how often they cause this code
  1. 1Failed main control board
  2. 2Defective Zero Watt relay
  3. 3Wiring harness fault
  4. 4Power supply irregularity

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Questions people ask about EH4

What does EH4 mean on a Electrolux washer?
The EH4 code indicates a Zero Watt relay alarm on an Electrolux washer. It means the control system has detected that the Zero Watt relay is not functioning correctly, and the machine is remaining powered on when the relay should have opened. This is a power management circuit fault that requires inspection of the main control board and associated relay components.
Is it safe to continue using my washer when EH4 is displayed?
It is not recommended to continue running the washer while the EH4 fault is active. A failed Zero Watt relay means the machine is not properly controlling its own power state, which could place additional stress on other electrical components. Discontinue use and have the machine inspected before running further cycles.
How much does it cost to repair an EH4 error on an Electrolux washer?
Repair costs vary depending on whether the fix requires a new main control board or just a wiring correction. Main control board replacements for Electrolux washers typically range from $150 to $400 or more including parts and labor, while a wiring repair may be considerably less. Getting a diagnostic estimate from a certified technician before committing to repairs is advisable.
Can I fix the EH4 error myself?
Some preliminary checks, such as inspecting wiring connections and verifying outlet voltage, can be done by a knowledgeable DIYer. However, if the fault lies within the main control board or the relay driver circuit, repair or replacement of the board is typically required and is best handled by a qualified technician. Working inside the machine involves exposure to line voltage, so safety precautions are essential.
Will resetting the washer clear the EH4 error code?
A simple power reset is unlikely to permanently clear the EH4 error, because the fault is tied to a hardware failure in the relay or control board circuit. The code will typically return as soon as the machine attempts to manage its power state again. The underlying component issue must be diagnosed and repaired for the fault to be resolved.

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