mypros+
Error code reference

AEG Washer Error Code CA

Triac short circuit on recirculation pump, recirculation pump interrupted, or recirculation pump short…

AEG codesAEG washer codes

Triac short circuit on recirculation pump, recirculation pump interrupted, or recirculation pump short circuit.

First step from the service manual

Replace main electronics; replace recirculation pump.

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 CA.

  • 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 CA means on a AEG washer

The CA error code on an AEG washer indicates a fault condition related to the recirculation pump circuit. Specifically, the code covers three related failure modes: a triac short circuit on the recirculation pump driver within the main control board, an interrupted (open circuit) condition in the recirculation pump, or a direct short circuit within the recirculation pump motor itself. The recirculation pump is responsible for drawing water from the drum and redistributing it during the wash cycle to improve cleaning performance.

The triac is a semiconductor switching component on the main control board that regulates power delivery to the recirculation pump. When this triac fails in a shorted state, it can cause the pump to run continuously or behave erratically, and the control board detects an abnormal current condition and triggers the CA code. Conversely, an interrupted circuit points to a break in the wiring harness, a failed pump motor winding, or a poor connector connection between the board and the pump. A pump short circuit means the motor windings have developed an internal fault, drawing excessive current.

Diagnosing this code requires checking continuity and resistance across the recirculation pump motor terminals to identify an open or shorted winding, inspecting the wiring harness and connectors for damage or corrosion, and evaluating the main control board for visible signs of triac damage. Because the fault can originate in either the pump or the control board, both components are primary candidates for replacement depending on what inspection reveals.

Source: manufacturer service documentation.

Common causes of CA

  1. 01

    Failed recirculation pump motor

    Part replacement

    The pump motor windings can develop an internal short circuit or open circuit over time due to heat and wear. This can be identified by measuring resistance across the pump motor terminals and comparing to expected values.

  2. 02

    Shorted triac on main control board

    Part replacement

    The triac responsible for switching power to the recirculation pump can fail in a short circuit condition, causing abnormal current flow. Inspect the control board for burn marks or damaged components near the pump output circuit.

  3. 03

    Damaged or broken wiring harness

    Wiring / connection

    The wiring between the control board and the recirculation pump can develop breaks, shorts, or corroded connectors, interrupting the circuit. Inspect the full harness run and connector pins for visible damage or oxidation.

  4. 04

    Loose or disconnected pump connector

    Wiring / connection

    A connector that has partially pulled free from the pump or control board can create an intermittent or open circuit condition. Check that all connectors are fully seated and locked at both ends of the harness.

  5. 05

    Pump blocked or mechanically seized

    Wiring / connection

    A recirculation pump that is jammed by debris can cause the motor to draw excessive current, which may register as a circuit fault. Remove and inspect the pump for foreign objects or impeller obstruction.

See the test procedure for each cause

Frequently asked questions about CA

What does CA mean on a AEG washer?
The CA code on an AEG washer signals a fault in the recirculation pump circuit. It can indicate a shorted triac on the main control board, an interrupted circuit in the recirculation pump, or a short circuit within the pump motor itself. The washer stops operation to prevent damage to other components. Both the recirculation pump and the main electronics board are the primary components to inspect and potentially replace.
Can I fix the CA error on my AEG washer myself?
Some causes of the CA error, such as a disconnected wiring harness connector or a blocked pump impeller, can be addressed without specialized tools. However, replacing the recirculation pump or the main control board requires disassembling the washer and working with electrical components, which is best handled by someone comfortable with appliance repair. If you are not experienced with electrical diagnostics, having a qualified technician perform the repair is advisable.
Will resetting my AEG washer clear the CA error code?
A power reset may temporarily clear the CA code, but it will return if the underlying fault is still present. If the recirculation pump motor is shorted or the control board triac has failed, the code will reappear as soon as the washer attempts to operate the recirculation pump. A reset is useful for ruling out a transient glitch, but a recurring CA code requires proper diagnosis and repair.
Is it safe to use my AEG washer when the CA error is showing?
Running the washer while the CA error is active is not recommended. A shorted triac or a shorted pump motor can cause excessive current draw, which may damage other components on the control board or the wiring harness. It is best to stop using the appliance until the fault has been diagnosed and the defective component replaced.
How much does it cost to repair the CA error on an AEG washer?
Repair costs depend on which component has failed. Replacing a recirculation pump typically ranges from around 80 to 200 dollars in parts, while a replacement main control board can range from 150 to 350 dollars or more depending on the specific model. Adding labor costs for a technician visit can bring the total to between 200 and 500 dollars or higher. Getting a diagnostic quote before committing to the repair is recommended.

Related AEG washer codes

All AEG washer codes
View all 78 AEG washer codes

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

Get Started

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