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Error code reference

Cove Dishwasher Error Code 050113

Wash pump drive system

Cove codesCove dishwasher codes

Wash pump drive system: MOT1 (wash pump motor) open phase error.

First step from the service manual

Confirm the harness connections are tight.

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

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What 050113 means on a Cove dishwasher

Error code 050113 on a Cove dishwasher indicates an open phase condition in the MOT1 wash pump motor drive system. An open phase means the motor controller is detecting that one or more of the electrical phases supplying the wash pump motor is absent or interrupted. The wash pump motor is a multi-phase motor responsible for circulating water through the spray arms during the wash cycle. When the drive system cannot confirm a complete electrical circuit through all required phases, it triggers this fault and halts operation to prevent motor damage.

The most common starting point for this fault is a loose or disconnected wiring harness. Vibration during normal operation can cause connectors to back out of their seats, and any break in the phase conductors between the control board and the motor will register as an open phase. Beyond the harness, the fault can originate at the motor windings themselves if a winding has failed open, or at the motor control module if it is no longer delivering the correct drive signals to the motor.

Diagnosing this code requires a systematic approach: begin by inspecting and reseating all harness connectors between the main control board and the wash pump motor. If connections are secure, measure resistance across each motor winding to check for an open circuit. A healthy motor winding will show a low, consistent resistance reading. If the winding reads infinite resistance (open), the motor requires replacement. If the motor checks out, the motor control board or drive circuitry should be evaluated as the source of the missing phase signal.

Source: manufacturer service documentation.

Common causes of 050113

  1. 01

    Loose or disconnected wiring harness

    Wiring / connection

    Vibration during the wash cycle can cause connectors between the control board and the wash pump motor to loosen or separate, breaking the phase circuit. Inspect and firmly reseat all harness connectors at both the motor and control board ends.

  2. 02

    Failed motor winding (open circuit)

    Part replacement

    One or more windings inside the MOT1 wash pump motor may have burned out or broken, creating an open phase condition. Measuring resistance across each winding with a multimeter will reveal an open winding as an infinite resistance reading.

  3. 03

    Damaged wiring harness

    Part replacement

    A wire in the harness between the motor and the control board may be cut, pinched, or corroded, interrupting one phase. Visually trace the harness for obvious damage and use a multimeter to check continuity along each conductor.

  4. 04

    Faulty motor control board or drive module

    Part replacement

    If the motor and harness both test correctly, the control board or drive circuitry may no longer be generating a complete drive signal to the pump motor. This is typically diagnosed after ruling out the motor and wiring as causes.

See the test procedure for each cause

Frequently asked questions about 050113

What does 050113 mean on a Cove dishwasher?
Error code 050113 indicates an open phase error in the wash pump motor drive system, identified as MOT1. This means the dishwasher's control system is detecting that one or more electrical phases reaching the wash pump motor is interrupted or absent. The machine stops operation to prevent motor damage until the fault is resolved.
Can I fix error code 050113 myself?
Some causes of this error are accessible to a knowledgeable DIYer. Checking and reseating the wiring harness connectors at the pump motor and control board requires no special tools. However, testing motor winding resistance with a multimeter and evaluating the motor control board involves working near electrical components, so those steps are better suited to experienced technicians.
Is it safe to keep using my Cove dishwasher with error code 050113 active?
No. When this error code is active, the dishwasher halts the wash cycle because the pump motor is not operating correctly. Attempting to bypass or ignore the fault risks further damage to the motor or control board. The dishwasher should remain out of service until the open phase condition is diagnosed and corrected.
Will resetting the dishwasher clear error code 050113?
A reset may temporarily clear the fault display, but the error will return if the underlying electrical problem is not repaired. An open phase condition is a hardware fault, not a software glitch, so resetting the unit without fixing the wiring, motor, or drive board will result in the code reappearing as soon as the machine attempts to run the wash pump.
How much does it cost to repair error code 050113 on a Cove dishwasher?
Repair cost depends on the failed component. If only a wiring harness repair or connector reseat is needed, costs may be limited to a service call fee, typically in the range of $75 to $150. A replacement wash pump motor can add $150 to $400 or more in parts, while a motor control board replacement can range from $200 to $500 or higher, not including labor.

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