Continental Washer Error Code A-06

A-06 indicates an overvoltage condition in the DC link circuit during motor acceleration, with the inverter displaying sub-code OU1. This means the internal DC bus voltage exceeded an acceptable threshold while the motor was ramping up to speed. The fault is most commonly related to supply voltage being too high, unbalanced across phases, or fluctuating at the moment of motor startup. The washer halts the cycle automatically to prevent damage to the inverter and motor.

A power reset may temporarily clear the A-06 code and allow the washer to restart, but if the underlying voltage condition is not corrected, the fault will return during the next motor acceleration phase. Resetting without diagnosing and resolving the supply voltage issue is not a lasting fix. Always verify line voltage is within specification before assuming the error has been resolved.

Repair cost depends entirely on the cause. If the issue is a supply voltage problem corrected by an electrician, costs typically range from $75 to $200 depending on the work required. If the inverter board has failed and requires replacement, parts and labor combined can range from $300 to $600 or more. Diagnosing the supply voltage first is always recommended, since it is the most common cause and costs nothing if you perform the voltage measurements yourself.

Start by measuring the supply voltage across all three leg combinations (L1-L2, L2-L3, and L1-L3) using a voltmeter. Readings should be between 208 and 240 volts and within plus or minus 2 volts of each other. If voltage is out of range or unbalanced, check for loose terminal connections, verify the washer is on a dedicated circuit, and contact a licensed electrician or the utility if the issue is on the supply side. If voltage checks out and the fault persists, the inverter board may need to be inspected or replaced.

You should not continue operating the washer while this fault is active without first identifying the cause. An overvoltage condition in the DC link circuit can damage the inverter board and motor over time if the root cause is a persistently high or unbalanced supply voltage. The machine's protective fault system stopped the cycle for a reason, and continued operation without correction risks more extensive and costly damage.