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Error code reference

Electrolux Dishwasher Error Code iC3

Communication between circuit boards failed

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What the iC3 error code actually means

The iC3 error means the two main computer boards inside your dishwasher have stopped talking to each other, so the machine cannot run a wash cycle. This is usually caused by a loose or damaged wire connection between those boards. The dishwasher will try to restart itself if the problem goes away on its own, but a technician will likely need to inspect the wiring or replace a control board if it does not.

Diagnostic procedure

The full iC3 procedure

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1
First diagnostic step
Check inter-board wiring and connectors; cycle stops and auto-restarts if alarm condition clears.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of iC3

Ranked by how often they cause this code
  1. 1Loose or disconnected inter-board connector
  2. 2Corroded or damaged connector pins
  3. 3Damaged wiring harness
  4. 4Faulty motor control board
  5. 5Faulty main control board

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Questions people ask about iC3

What does iC3 mean on a Electrolux dishwasher?
The iC3 code means the main control board and the motor control board have failed to establish communication. This communication link is required at the start of every cycle, and without it, the dishwasher cannot operate. The machine will stop the cycle and attempt to auto-restart if the condition clears, but the code will return if the root cause is not addressed.
Is it safe to use my dishwasher when the iC3 code is showing?
The dishwasher will not complete a wash cycle while iC3 is active, so normal use is not possible in that state. There is no immediate safety hazard such as a fire or flood risk associated with this communication error, but the appliance should not be forced to run until the fault is resolved.
How much does it cost to repair an iC3 error on an Electrolux dishwasher?
Repair costs depend on what is causing the fault. If the fix is a reseated connector or a replacement wiring harness, costs are generally in the range of $50 to $150 including labor. If a control board needs to be replaced, total repair costs including parts and labor typically fall between $150 and $400 depending on the specific board and service rates in your area.
Can I fix the iC3 error myself?
A homeowner comfortable with basic appliance inspection can check whether the wiring connectors between the two boards are fully seated and free of visible corrosion or damage. If the connectors look good and the error persists, diagnosing or replacing a control board typically requires a technician with the right tools and experience. Attempting board replacement without proper diagnosis risks purchasing an unnecessary part.
Will resetting the dishwasher clear the iC3 error?
The dishwasher is designed to auto-restart if the communication fault clears on its own, and a power reset may temporarily clear the code. However, if the underlying cause is a physical wiring or board problem, the iC3 error will return when the next cycle is attempted. A reset alone is not a fix for a persistent iC3 condition.

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