Vision Washer Error Code dr:20

The dr:20 code indicates a short circuit fault in the IGBT power stage of the inverter board, accompanied by a high current condition. The IGBT is the transistor that controls power delivery to the drive motor, and once it shorts, the inverter can no longer safely operate. The washer will stop functioning and will not resume until the inverter is replaced.

No, the washer should not be used while displaying dr:20. The error indicates a short circuit in the motor drive electronics, and continuing to attempt operation could cause additional damage to connected components or create an electrical hazard. Disconnect the washer from power until the inverter has been inspected and replaced.

Repair costs will vary depending on the inverter board price and labor rates in your area. Parts alone for an inverter board typically fall in the range of $80 to $250 or more depending on availability, with professional labor adding $75 to $150 in most markets. Getting a quote from a local appliance repair technician is the best way to determine the total cost for your specific situation.

Replacing the inverter board requires working with high-voltage components, so this repair is best handled by a qualified appliance technician. A knowledgeable DIYer comfortable with electrical safety procedures could attempt the replacement, but the inverter board handles significant voltage and current levels that present a shock hazard if handled improperly. Before ordering parts, also check for motor restrictions or shorted wiring that may have caused the original inverter failure.

No, a power reset will not clear the dr:20 error because the fault is caused by permanent physical damage to the IGBT transistor inside the inverter. Unlike transient sensor faults, a shorted IGBT does not recover after power cycling. The code will return immediately or prevent startup until the defective inverter board is replaced.