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Error code reference

Vision Washer Error Code dr:27

DC voltage warning.

Vision codesVision washer codes

DC voltage warning.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
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  • Verified part numbers when replacement is required
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What dr:27 means on a Vision washer

Error code dr:27 on a Vision washer indicates a DC voltage warning within the machine's control system. This code is triggered when the control board detects that the DC voltage level has deviated outside of its acceptable operating range. The DC voltage supply is critical to the proper functioning of the washer's electronic components, including the main control board, motor drive circuitry, and various sensors. When voltage falls too low or climbs too high, the system flags this condition to prevent damage to sensitive electronics.

The DC voltage in a washer is typically derived from the incoming AC power line voltage through a power supply module or transformer and rectifier circuit. A warning at this stage can point to problems either upstream in the AC supply or within the internal power conversion components. Fluctuating household voltage, a failing power supply board, or a faulty main control board can all contribute to this warning being triggered.

Because this is classified as a warning rather than a hard fault, the washer may still attempt to operate, but continued use under abnormal DC voltage conditions risks damaging the motor controller, control board, or drive components. Technicians should measure the incoming line voltage at the machine's terminal block and evaluate the internal DC bus voltage at the control board to determine whether the issue originates externally from the power supply or internally within the washer's electronics.

Source: manufacturer service documentation.

Common causes of dr:27

  1. 01

    Low or unstable household AC voltage

    Wiring / connection

    If the incoming AC line voltage from the outlet is too low or fluctuating, the washer's internal DC power supply will produce out-of-range DC voltage. Check the outlet voltage with a multimeter to confirm it is within the expected range.

  2. 02

    Failing power supply or control board

    Part replacement

    The internal power supply circuitry on the control board converts AC to DC voltage. If this section is degraded or failing, it can produce incorrect DC output even when the AC input is normal, triggering the dr:27 warning.

  3. 03

    Loose or corroded wiring connections

    Wiring / connection

    Loose connections at the power terminal block, control board harness connectors, or internal wiring can cause voltage drops or intermittent faults. Inspect all power-related connectors for corrosion, looseness, or burn marks.

  4. 04

    Overloaded circuit or shared electrical circuit

    Wiring / connection

    If the washer shares a circuit with other high-draw appliances, voltage sag during operation can trigger this warning. Verify the washer is on a dedicated circuit of the appropriate amperage rating.

  5. 05

    Faulty main control board

    Part replacement

    If the DC voltage supply checks out as normal but the error persists, the main control board's voltage monitoring circuit may itself be malfunctioning and reporting a false warning. Replacing the control board would be the next diagnostic step.

See the test procedure for each cause

Frequently asked questions about dr:27

What does dr:27 mean on a Vision washer?
The dr:27 code on a Vision washer indicates a DC voltage warning, meaning the control system has detected that the DC voltage level is outside its acceptable operating range. This can be caused by issues with the incoming household power supply, internal power conversion components, or the control board itself. It is important to investigate the cause to prevent damage to the washer's electronics.
Can I fix the dr:27 error on my Vision washer myself?
Some causes of the dr:27 error are DIY-friendly, such as checking the outlet voltage with a multimeter, inspecting wiring connections for looseness or corrosion, and ensuring the washer is on a dedicated circuit. However, if the issue involves the power supply circuitry or the main control board, replacement of those components is typically required and may be better handled by a qualified technician given the electrical risks involved.
Is it safe to keep using my Vision washer when dr:27 is displayed?
It is not recommended to continue using the washer while the dr:27 warning is active. Operating under abnormal DC voltage conditions can cause progressive damage to the motor controller, control board, and other electronics. Addressing the underlying cause before resuming normal use is the safer approach.
Will resetting my Vision washer clear the dr:27 error code?
Resetting the washer by unplugging it for several minutes may temporarily clear the dr:27 warning, but the code is likely to return if the underlying voltage issue has not been resolved. A reset is useful as a first step to confirm whether the fault is intermittent, but it does not fix the root cause.
How much will it cost to repair the dr:27 error on a Vision washer?
Repair costs vary depending on the root cause. If the issue is simply an inadequate household circuit or loose wiring, costs may be minimal. If a control board replacement is needed, parts and labor combined could range from roughly $150 to $400 or more depending on parts availability and local labor rates. A proper diagnosis is recommended before committing to any specific repair.

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