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Error code reference

Cove Dishwasher Error Code 800179

Disconnected or unresponsive drain pump.

Cove codesCove dishwasher codes

Disconnected or unresponsive drain pump.

First step from the service manual

Check drain pump connections and verify drain pump is responsive.

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

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What 800179 means on a Cove dishwasher

Error code 800179 on a Cove dishwasher indicates that the control board has detected the drain pump as either disconnected or unresponsive. The drain pump is responsible for expelling wastewater from the wash tub at the appropriate points in the cycle. When the control board sends a signal to activate the drain pump and receives no confirmation of operation, or detects an open circuit in the pump circuit, it triggers this error and halts the cycle to prevent water overflow or mechanical damage.

The most likely causes fall into two categories: electrical connection failures and pump mechanical failure. On the electrical side, wiring harness connectors can loosen due to vibration over time, corrode from moisture exposure inside the dishwasher cavity, or sustain physical damage. On the mechanical side, the pump motor windings can fail open, leaving the pump electrically non-functional even if the wiring is intact. A seized pump impeller due to debris accumulation can also cause the motor to draw no current if thermal protection has tripped.

Diagnosis should begin at the drain pump connector, verifying the harness is fully seated and that the terminals show no corrosion or damage. If connections are sound, the pump motor itself should be tested for continuity and proper resistance across its terminals. A reading of infinite resistance indicates an open winding and pump replacement is required. If resistance is within spec, the fault may lie upstream in the wiring harness or with the control board output circuit.

Source: manufacturer service documentation.

Common causes of 800179

  1. 01

    Loose or disconnected wiring harness connector

    Wiring / connection

    The connector linking the drain pump to the wiring harness may have worked loose due to vibration or was not fully seated. Inspect the connector at the pump and trace the harness for any disconnected plugs.

  2. 02

    Corroded or damaged pump terminals

    Wiring / connection

    Moisture inside the dishwasher cabinet can cause terminal pins at the pump connector to corrode, increasing resistance or breaking continuity entirely. Look for green or white oxidation on the metal terminals and check for bent or pushed-back pins.

  3. 03

    Failed drain pump motor

    Part replacement

    The pump motor windings can fail open, making the pump electrically non-functional. Testing the motor terminals with a multimeter for continuity will confirm this; infinite resistance indicates a failed motor requiring pump replacement.

  4. 04

    Debris-seized pump impeller with tripped thermal protection

    Wiring / connection

    Foreign objects such as broken glass, food debris, or labels can jam the impeller, causing the motor to overheat and trip its internal thermal protector. Clear any blockage from the pump sump area and allow the pump to cool before retesting.

  5. 05

    Control board output circuit fault

    Part replacement

    If the pump and all wiring test within spec, the control board relay or output circuit driving the drain pump may have failed. This is the least common cause and is typically diagnosed only after all other components are ruled out.

See the test procedure for each cause

Frequently asked questions about 800179

What does 800179 mean on a Cove dishwasher?
Error code 800179 means the dishwasher control board has detected that the drain pump is disconnected or not responding to commands. The control system sends a signal to activate the drain pump and either receives no response or detects an open circuit. The dishwasher halts the cycle until the issue is resolved to prevent water overflow or further damage.
Can I fix error code 800179 myself, or do I need a technician?
Some causes of this error, such as a loose harness connector or a jammed impeller, can be addressed by a confident DIYer comfortable working around appliance wiring. However, replacing the drain pump or diagnosing a control board fault typically requires disassembling the dishwasher and using a multimeter to test components, which may be better suited to a qualified technician. If you are not comfortable working around electrical components, scheduling a service call is the safer option.
Will resetting the dishwasher clear error code 800179?
A reset may temporarily clear the error code and allow the dishwasher to restart, but if the underlying fault with the drain pump or its wiring is still present, the code will return as soon as the control board attempts to activate the pump again. A reset is useful for confirming whether the fault is intermittent, but it does not substitute for diagnosing and correcting the root cause.
Is it safe to run my Cove dishwasher while error code 800179 is active?
Running the dishwasher with an unresponsive drain pump is not recommended. If the pump cannot expel wastewater at the correct points in the cycle, water may back up into the tub or leak, potentially causing water damage to the surrounding cabinetry or flooring. The dishwasher should remain out of service until the drain pump issue is resolved.
How much does it cost to repair error code 800179 on a Cove dishwasher?
Repair costs vary depending on the root cause. If the issue is only a loose connector or debris in the pump, the cost may be limited to a service call fee, typically in the range of $75 to $150. A drain pump replacement, including parts and labor, generally falls in the range of $150 to $350. Control board replacement is the most expensive scenario and can range from $250 to $500 or more depending on parts availability and labor rates in your area.

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