Error code reference

Whirlpool Dishwasher Error Code 8-2

Drain motor electrical problem

Whirlpool codesWhirlpool dishwasher codes

Drain motor electrical problem — loose connection in Drain Motor circuit and/or open Drain Motor winding, debris stuck in drain motor impeller, open fuse on control to drain motor, or Drain Motor Drive circuit on control.

First step from the service manual

Check operation of drain motor during diagnostics. Unplug dishwasher or disconnect power. Check resistances of drain motor winding and all connections in the Drain circuit.

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

MyPros+ Max

Get the full diagnostic procedure for 8-2.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What 8-2 means on a Whirlpool dishwasher

The 8-2 error code indicates the control board has detected an electrical fault in the drain motor circuit. Specifically, the board is reading abnormal resistance values from the drain motor windings, or it has found an open or broken connection somewhere along the drain motor circuit path. This is a hard electrical fault, not a clog or blockage issue, meaning the problem lives in the wiring, connectors, or the drain motor itself rather than in the drain path.

For homeowners, the drain motor is the component responsible for pumping standing water out of the tub at the end of each wash cycle. When the dishwasher shows 8-2, it means the control board tried to communicate with or power the drain motor and got a bad reading back. The motor may have a failed internal winding, or a wire or connector somewhere between the control board and the motor has broken, corroded, or come loose. The dishwasher will not drain reliably, if at all, while this code is active.

The first diagnostic step is to unplug the dishwasher and use a multimeter to check the resistance across the drain motor windings and inspect every connector in the drain motor circuit for damage, corrosion, or loose pins. A healthy motor winding will show a specific low resistance value; an open winding reads as infinite resistance and confirms the motor needs replacement.

Source: manufacturer service documentation.

Common causes of 8-2

  1. 01

    Failed drain motor winding

    Part replacement

    The internal copper windings inside the drain motor can burn out or break, creating an open circuit. A multimeter check across the motor terminals will show infinite or out-of-range resistance, confirming the motor must be replaced.

  2. 02

    Broken or open wire in drain motor circuit

    Wiring / connection

    A wire in the harness between the control board and drain motor can fray, break internally, or pull out of a terminal, interrupting the circuit. This shows up as an open on resistance testing even if the motor itself is fine.

  3. 03

    Corroded or loose connector at drain motor

    Wiring / connection

    The plug-in connector at the drain motor can develop corrosion on its terminals or work loose over time from vibration, causing intermittent or complete loss of electrical contact. Cleaning or reseating the connector sometimes resolves the fault without replacing any parts.

  4. 04

    Faulty drain motor control relay or failed control board

    Part replacement

    If the motor and all wiring check out within spec, the control board itself may have a failed output relay or driver circuit that cannot properly energize the drain motor. This is the least common cause and should only be suspected after confirming the motor and harness are good.

See the test procedure for each cause

Frequently asked questions about 8-2

What does error code 8-2 mean on a Whirlpool dishwasher?
Error code 8-2 on a Whirlpool dishwasher means the control board has detected an electrical problem in the drain motor circuit. This could be a failed drain motor winding, a broken wire, or a corroded connector in the drain motor circuit path. The dishwasher cannot reliably drain while this code is active.
How do I fix error code 8-2 on a Whirlpool dishwasher?
Start by unplugging the dishwasher to cut power, then use a multimeter to test the resistance of the drain motor windings and check every connector in the drain motor circuit for damage or corrosion. If a winding reads open (infinite resistance), replace the drain motor. If the motor tests within spec, trace the wiring harness for breaks or loose terminals and repair as needed. If you are not comfortable working with electrical components, a technician can complete this diagnosis quickly.
Can I still use my Whirlpool dishwasher with an 8-2 error code?
Running the dishwasher with an active 8-2 code is not recommended. Because the drain motor circuit has an electrical fault, the machine will likely fail to drain at the end of a cycle, leaving standing water in the tub. Running cycles repeatedly without resolving the fault will not clear the code and may leave food debris sitting in pooled water.
How much does it cost to fix a Whirlpool dishwasher 8-2 error code?
If the fix is a loose or corroded connector, the repair costs nothing beyond your time. A replacement drain motor for a Whirlpool dishwasher typically runs between $40 and $100 for the part depending on the model. If you hire a technician, expect to add $80 to $150 in labor, bringing the total to roughly $120 to $250 for a motor replacement. A wiring harness repair done by a tech is usually on the lower end of that labor range.
Is 8-2 on a Whirlpool dishwasher a wiring problem or a bad motor?
Error code 8-2 can point to either one. The control board sees an abnormal resistance reading in the drain motor circuit but cannot tell on its own whether the fault is inside the motor or in the wiring leading to it. Testing drain motor winding resistance and inspecting all connectors with a multimeter is the only way to pinpoint whether the motor itself or the wiring circuit is the source of the fault.

Related Whirlpool dishwasher codes

All Whirlpool dishwasher codes
View all 137 Whirlpool dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass