mypros+
Error code reference

Electrolux Dryer Error Code EC8

Steam pump diode alarm

Electrolux codesElectrolux dryer codes

Steam pump diode alarm - diode short-circuited or missing. Disables steamer activation.

First step from the service manual

Check steam pump diode.

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 EC8.

  • 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 EC8 means on a Electrolux dryer

The EC8 error code on an Electrolux dryer signals a steam pump diode alarm, indicating that the diode within the steam pump circuit is either short-circuited or completely absent from the circuit. The steam system in these dryers uses a small pump to deliver water to a heating element or steam generator, and a protective diode is integrated into the pump's electrical circuit to allow current flow in only one direction. When the control board detects an abnormal electrical condition across this diode, such as a short circuit that allows current to flow in both directions or an open circuit suggesting the component is missing, it triggers EC8 and disables the steamer function entirely to prevent further electrical damage.

A diode short circuit typically occurs when the diode fails internally, causing it to conduct in both directions rather than acting as a one-way valve for current. This can happen due to voltage spikes, age-related component degradation, or moisture exposure within the steam pump assembly. A missing diode reading, on the other hand, may indicate a broken solder joint, a disconnected harness connector, or a diode that has completely failed open. Because the steamer is disabled when EC8 is active, the dryer will continue to function for standard drying cycles, but any steam-related programs will be unavailable until the fault is resolved.

Diagnosing EC8 begins with a visual and electrical inspection of the steam pump diode. Technicians should check the diode using a multimeter in diode-test mode, confirming forward voltage drop in one direction and no continuity in the reverse direction. A reading of continuity in both directions confirms a short, while no reading in either direction suggests an open failure or missing component. Wiring harness integrity and connector seating at the pump should also be verified before condemning the diode or the pump assembly itself.

Source: manufacturer service documentation.

Common causes of EC8

  1. 01

    Failed steam pump diode (short circuit)

    Part replacement

    The diode inside the steam pump circuit has shorted internally, allowing current to pass in both directions. This is confirmed with a multimeter in diode-test mode showing continuity in both forward and reverse directions.

  2. 02

    Failed steam pump diode (open circuit)

    Part replacement

    The diode has failed open, meaning it no longer conducts at all, which the control board interprets as a missing component. A multimeter in diode-test mode will show no reading in either direction.

  3. 03

    Disconnected or damaged wiring harness

    Wiring / connection

    A loose connector or broken wire between the control board and the steam pump can produce a missing diode reading even if the diode itself is functional. Inspect the harness and connector pins for corrosion, damage, or incomplete seating.

  4. 04

    Moisture or corrosion at the pump connector

    Wiring / connection

    Steam system components are exposed to humidity, which can corrode connector terminals and cause intermittent or false diode fault readings. Inspect the connector at the steam pump for oxidation or moisture intrusion.

  5. 05

    Faulty steam pump assembly

    Part replacement

    If the diode is integrated directly into the pump assembly rather than a standalone component, failure of the pump itself may require replacing the entire steam pump unit. This is typically considered after confirming the wiring and diode condition.

See the test procedure for each cause

Frequently asked questions about EC8

What does EC8 mean on a Electrolux dryer?
EC8 indicates a steam pump diode alarm, meaning the control board has detected that the diode in the steam pump circuit is either short-circuited or missing. As a result, the dryer disables all steamer functions to protect the electrical system. Standard drying cycles are typically still available, but any program that uses steam will not operate until the fault is corrected.
Can I fix the EC8 error myself?
A knowledgeable DIYer can begin by inspecting the steam pump wiring harness for loose connectors or visible damage, which requires no parts and may resolve the fault. Testing the diode with a multimeter in diode-test mode is also within reach for those comfortable working with appliance electronics. However, if the diode or steam pump assembly needs replacement, sourcing the correct component and soldering or swapping the part may require professional assistance.
Is it safe to keep using my dryer with the EC8 error?
The dryer disables the steam system when EC8 is active, which is a protective measure designed to prevent further electrical damage. Standard, non-steam drying cycles should continue to operate normally. It is generally safe to use those cycles, but the underlying fault should be diagnosed and repaired promptly to restore full functionality and prevent potential damage to the control board.
How much does it cost to repair the EC8 error on an Electrolux dryer?
Repair costs depend on the root cause. If the fix is simply reseating a connector or cleaning a corroded terminal, there may be little to no parts cost, with labor ranging from roughly $50 to $100 if a technician is called. If the diode or steam pump assembly needs replacement, parts and labor combined could range from $100 to $300 or more depending on parts availability and local service rates.
Will resetting the dryer clear the EC8 error code?
A power reset, such as unplugging the dryer for a few minutes and restarting it, may temporarily clear the EC8 code if the fault was caused by a transient electrical event. However, if the diode is genuinely short-circuited, open, or the wiring is damaged, the code will return as soon as the control board runs its diagnostic check. A reset alone is not a repair and the underlying issue must be properly diagnosed.

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