Haier Washer Error Code Error 4

Error 4 on a Haier washer indicates a timing control failure within the machine's control system. The timing control circuit is responsible for coordinating the sequencing of wash cycles, including motor operation, water intake, drainage, and door locking functions. When this circuit is damaged or malfunctioning, the washer cannot properly execute its programmed cycle logic, causing it to halt operation and signal the fault.

The specific indicator pattern for this error is the door lock light flashing 6 times followed by a 4-second pause, with this sequence repeating continuously. This rhythmic flash pattern is the control board's way of communicating the fault code to the technician or user. The timing control component may refer to a dedicated timing circuit on the main control board or a separate timing module, depending on the specific model variant.

Common triggers for this error include a failed or shorted control board, damaged wiring harness connections to the timing circuit, power surge damage to the onboard electronics, or a faulty door lock assembly sending incorrect signals back to the timing circuit. Because this error points to an internal control system fault rather than a simple sensor or mechanical issue, Haier's guidance is to contact authorized service personnel rather than attempt self-diagnosis, as improper handling of the control board can cause further damage.