AEG Washer Error Code E43

E43 means the measurement circuit monitoring the door lock is reading a fixed voltage of either 0V or 5V, when it should be producing a changing signal. This prevents the washer from confirming the door is securely locked. The machine stops operation as a safety measure until the fault is resolved.

A reset may temporarily clear the error display, but because E43 points to a hardware fault in the door lock measurement circuit, the code will return as soon as the washer attempts to lock the door again. A reset is not a fix and the underlying component issue must be addressed before the machine will operate reliably.

Repair costs depend on the root cause. Replacing the main control board typically costs between $150 and $350 for the part alone, with additional labor costs if a technician is hired. A door lock assembly replacement is generally less expensive, ranging from $30 to $90 for the part. A wiring harness repair by a technician may fall in the $80 to $180 range depending on the extent of the damage.

Some causes, such as a loose connector or a damaged wiring harness, can be addressed by a confident DIYer with basic electrical knowledge. However, the primary recommended fix involves replacing the main control board or the door lock assembly, which requires disassembly of the washer and comfort working with electrical components. If you are not experienced with appliance repair, it is advisable to call a qualified technician.

No. E43 indicates the control board cannot confirm the door lock status, which is a critical safety circuit. Running the washer without a confirmed door lock could result in the door opening during a cycle, causing water damage or injury. The machine should remain out of service until the fault is repaired.