Er-12
What code Er-12 means on a Electrolux dishwashers, what causes it, and which part to check first.
● SEVERITY: HIGH
Electrolux Er-12 means: Drain valve position error. The documented cause is: The drain valve activated when it should be off. Shut off power to the dishwasher. Check the drain valve wiring for a short.
What Er-12 means
Drain valve position error
The display shows Er-12 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by applianceaid.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| The drain valve activated when it should be off |
| Shut off power to the dishwasher |
| Check the drain valve wiring for a short |
| If the wiring is okay, replace the electronic control board because the drain valve relay likely is stuck |
| If the problem continues, replace the drain valve |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. The heating element and the wash water can stay hot long after the cycle ends.
What to check, in order
From the quickest check to the one that needs a technician.

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Frequently asked questions
What does Er-12 mean on a Electrolux?
Drain valve position error The documented cause is: The drain valve activated when it should be off. Shut off power to the dishwasher. Check the drain valve wiring for a short. If the wiring is okay, replace the electronic control board because the drain valve relay likely is stuck. If the problem continues, replace the drain valve
Can I fix Er-12 myself?
It depends on the part involved: The drain valve activated when it should be off. Shut off power to the dishwasher. Check the drain valve wiring for a short. If the wiring is okay, replace the electronic control board because the drain valve relay likely is stuck. If the problem continues, replace the drain valve Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Electrolux use other codes on this appliance?
Yes: we document 20 other codes for Electrolux on this dishwashers. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.

