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Error code reference

Vision Washer Error Code dr:22

IGBT temperature sensor error

Vision codesVision washer codes

IGBT temperature sensor error – IGBT temperature sensor damaged.

First step from the service manual

Change inverter.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What dr:22 means on a Vision washer

The dr:22 error code on a Vision washer indicates an IGBT temperature sensor error. The IGBT, or Insulated Gate Bipolar Transistor, is a critical switching component located on the inverter board. It controls the variable-frequency drive signals sent to the wash motor, regulating speed and torque during the wash cycle. Embedded within or directly attached to the IGBT is a temperature sensor that monitors the transistor's operating heat levels to prevent thermal runaway and component damage.

When the control system detects that the IGBT temperature sensor is damaged or returning an invalid signal, it triggers the dr:22 fault and halts operation. A damaged sensor can result from overheating events that exceed the component's rated thermal limits, electrical surges, moisture intrusion into the inverter board housing, or simple component failure due to age and usage cycles. Because the sensor is integrated with the inverter assembly, it is not typically serviceable as a standalone part.

The recommended first diagnostic step is to replace the inverter board entirely. Before performing this replacement, technicians should inspect the inverter board for visible burn marks, swollen capacitors, corroded traces, or heat discoloration around the IGBT module. Also verify that the washer's internal ventilation paths are clear and that no external factors contributed to the overheating condition. Addressing any root causes prior to installing a new inverter will help prevent a repeat failure.

Source: manufacturer service documentation.

Common causes of dr:22

  1. 01

    Damaged IGBT temperature sensor on the inverter board

    Part replacement

    The temperature sensor on the IGBT module has failed, either from overheating or component degradation, and is returning an invalid or out-of-range signal to the control system. This is the direct cause identified by the dr:22 code and requires inverter replacement.

  2. 02

    Inverter board overheating event

    Part replacement

    A prior thermal overload may have physically damaged the IGBT sensor even if the inverter board appears to function otherwise. Check for burn marks, discoloration, or heat damage around the IGBT module on the board.

  3. 03

    Moisture or corrosion on the inverter board

    Part replacement

    Water intrusion into the inverter board housing can corrode sensor contacts or traces, causing erratic or failed sensor readings. Inspect the board and surrounding area for moisture, rust, or corrosion deposits.

  4. 04

    Electrical surge damage

    Part replacement

    A voltage spike can damage the IGBT or its integrated temperature sensor without leaving obvious visual evidence. If the error appeared after a power outage or storm, surge damage to the inverter board is a likely cause.

  5. 05

    Loose or damaged wiring to the inverter board

    Wiring / connection

    A poor connection or damaged wire harness between the inverter board and the control system could produce a sensor error signal. Inspect all connectors to the inverter board for secure seating and pin damage before replacing the board.

See the test procedure for each cause

Frequently asked questions about dr:22

What does dr:22 mean on a Vision washer?
The dr:22 code on a Vision washer indicates an IGBT temperature sensor error. The IGBT is a transistor on the inverter board that controls the motor, and its built-in temperature sensor has been detected as damaged or non-functional. The washer stops operation when this fault is active to prevent further component damage. Resolving this code requires replacing the inverter board.
Can I fix the dr:22 error myself?
The recommended repair for the dr:22 error is replacing the inverter board, which involves working with high-voltage electronics inside the washer. While a knowledgeable DIYer comfortable with appliance repair may be able to perform this replacement, it is important to disconnect the washer from power completely before opening the cabinet. If you are not experienced with inverter board replacements, a qualified technician is the safer choice.
Is it safe to use my Vision washer while the dr:22 code is active?
No, you should not attempt to run the washer while the dr:22 error is displayed. The code indicates the motor control system cannot properly monitor IGBT temperature, which means there is no thermal protection in place during operation. Continued use under this condition risks permanent damage to the inverter board or other electrical components.
How much does it cost to repair a Vision washer with the dr:22 error?
Repair costs will depend on the price of the replacement inverter board and whether you hire a technician or complete the repair yourself. Parts for inverter board replacements on washers typically range from $80 to $250, and professional labor can add another $75 to $150 depending on your area. Getting a cost estimate from a local appliance repair service before committing to the repair is a good idea.
Will resetting my Vision washer clear the dr:22 error code?
A power reset may temporarily clear the dr:22 code from the display, but it will not resolve the underlying hardware fault. Because the error is caused by a physically damaged IGBT temperature sensor on the inverter board, the code will return as soon as the washer attempts to operate again. A permanent fix requires replacing the inverter board.

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