Haier Washer Error Code Error 4

Error 4 on a Haier washer indicates timing control damage within the machine's control system. You will see the door lock light flash 6 times, pause for 4 seconds, and repeat continuously. This error means the washer's internal timing circuit has failed and the machine cannot properly sequence its wash cycle operations. Haier recommends contacting authorized service personnel to address this fault.

A simple reset by unplugging the washer for a few minutes may temporarily clear the display, but Error 4 is unlikely to stay resolved if the underlying timing control component is genuinely damaged. If the error returns immediately or after the next wash attempt, the fault is persistent and requires professional diagnosis. Repeated resets will not repair a failed control board or damaged wiring.

Repair costs for Error 4 will vary depending on the root cause. If the issue is a loose wiring connection, a service call fee of roughly $75 to $150 may be all that is needed. If the main control board requires replacement, total repair costs including parts and labor typically range from $200 to $400 or more depending on the model and local labor rates. Getting a diagnostic estimate from an authorized technician before approving repairs is recommended.

Error 4 points to a timing control failure that is internal to the electronic control system, so Haier's guidance is to have an authorized technician handle the repair. A technician may check wiring harness connections and the door lock assembly before concluding the control board needs replacement. Attempting to repair or replace the control board without proper training risks further damage to the washer.

It is not advisable to continue using the washer while Error 4 is active. A timing control failure means the machine cannot reliably sequence its operations, which could result in incomplete cycles, water not draining properly, or uncontrolled operation. Discontinue use and contact a qualified technician before running additional loads.