Maytag Washer Error Code d16 (washer)

The d16 code on a Maytag washer means the machine has not received any communication from its installed Generation 2 debit card reader for 5 consecutive minutes while operating in Generation 2 debit mode. This is a payment system communication fault specific to commercial configurations with a card reader installed. It typically points to a wiring or connection problem between the User Interface Control board and the card reader module.

Clearing the code and unplugging the washer is the recommended first step, but the error will return if the underlying communication problem is not resolved. If the wiring or card reader issue remains, the d16 code will reappear once the washer re-enters Generation 2 debit mode and again fails to receive a signal for 5 minutes.

If the fix is simply reseating a loose connector, there may be no parts cost, only a service call fee which typically ranges from $75 to $150. If the wire harness requires replacement, parts and labor could run between $100 and $250. Replacing a failed Generation 2 debit card reader module is generally the most expensive repair, with total costs potentially ranging from $200 to $500 or more depending on parts availability and labor rates.

Start by clearing the error code, then unplug the washer from power. Inspect all wire harness connections between the UIC board connector AA3 and the Generation 2 debit card reader, reseating any connectors that are loose or corroded. If the connections are secure and the error returns, the harness itself or the card reader module may need to be replaced.

The d16 error is a payment system communication fault and does not indicate a mechanical or electrical hazard within the wash system itself. However, in a commercial setting the card reader functionality will not work correctly while this fault is active. The washer's basic wash functions may still operate, but the debit payment system cannot be relied upon until the fault is resolved.