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Error code reference

Cove Dishwasher Error Code 050144

Wash pump drive system

Cove codesCove dishwasher codes

Wash pump drive system: Motor over temperature error (non-fatal). MCM calculated wash pump temperature over 140°F for two measurement trials.

First step from the service manual

Check the wash pump motor harness.

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

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What 050144 means on a Cove dishwasher

Error code 050144 on a Cove dishwasher indicates a non-fatal wash pump drive system fault in which the Motor Control Module (MCM) has detected that the wash pump motor temperature has exceeded 140°F across two consecutive measurement trials. Because the fault requires two measurement confirmations before triggering, it filters out brief thermal spikes and points to a sustained overheating condition rather than a momentary anomaly. The MCM continuously monitors motor temperature as part of its drive system protection logic, and when this threshold is crossed repeatedly, it logs the error to alert the technician without necessarily halting the wash cycle immediately.

The wash pump motor is responsible for circulating water through the spray arms during the wash and rinse cycles. When the motor runs hotter than normal, it is typically due to restricted water flow, electrical issues in the motor winding or drive circuit, or a mechanical binding condition that increases the load on the motor. Overheating shortens motor winding insulation life and can eventually lead to a hard failure if the root cause is not addressed.

The recommended first diagnostic step is to inspect the wash pump motor harness. A damaged, corroded, or poorly seated connector can introduce resistance into the motor circuit, causing the motor to work harder and generate excess heat. Beyond the harness, the technician should also evaluate water supply conditions, check for obstructions in the pump or filter assembly, and assess whether the motor itself shows signs of winding degradation or bearing wear.

Source: manufacturer service documentation.

Common causes of 050144

  1. 01

    Faulty or damaged motor harness connection

    Wiring / connection

    A loose, corroded, or chafed connector on the wash pump motor harness adds resistance to the circuit, forcing the motor to draw more current and generate more heat. Inspect the harness and connector pins for corrosion, burn marks, or poor seating.

  2. 02

    Blocked pump or filter assembly

    Wiring / connection

    Debris such as food particles, glass fragments, or foreign objects lodged in the pump impeller or filter can restrict water flow and increase the mechanical load on the motor. Remove and inspect the filter and pump inlet for obstructions.

  3. 03

    Restricted or low water supply

    Wiring / connection

    Insufficient water entering the dishwasher causes the pump to move less water than designed, reducing the cooling effect on the motor and allowing heat to build up. Verify the inlet water supply valve is fully open and water pressure is adequate.

  4. 04

    Worn or failing wash pump motor

    Part replacement

    Bearing wear or degraded winding insulation inside the motor causes it to run inefficiently and produce excess heat even under normal operating loads. If the harness and water supply check out, the motor itself may need replacement.

  5. 05

    MCM drive circuit fault

    Part replacement

    A fault within the Motor Control Module's drive output stage can cause the motor to receive incorrect voltage or current, leading to abnormal heat generation. If all mechanical and wiring checks pass, the MCM may require evaluation or replacement.

See the test procedure for each cause

Frequently asked questions about 050144

What does 050144 mean on a Cove dishwasher?
Error code 050144 means the Motor Control Module has calculated that the wash pump motor temperature exceeded 140°F during two consecutive measurement trials. It is classified as a non-fatal error, meaning the dishwasher may continue to operate but there is an underlying condition causing the pump motor to overheat. The most common starting point for diagnosis is inspecting the wash pump motor harness for damage or poor connections.
Can I fix error code 050144 myself on a Cove dishwasher?
Some of the causes behind this error are accessible to a knowledgeable DIYer. Checking and reseating the motor harness connector, cleaning the filter assembly, and verifying the water supply are all tasks that do not require specialized tools. However, if the motor itself or the Motor Control Module needs replacement, those repairs involve working with electrical components and are best handled by a qualified appliance technician.
Is it safe to keep using my Cove dishwasher when error 050144 is active?
Because 050144 is designated as a non-fatal error, the dishwasher may continue to run, but operating it indefinitely with an unresolved overheating condition is not advisable. Sustained motor overheating can cause progressive damage to winding insulation and eventually lead to a complete motor failure. It is best to diagnose and address the root cause promptly to avoid a more costly repair later.
Will resetting the dishwasher clear error code 050144?
A reset may temporarily clear the error from the display, but if the underlying cause of the motor overheating is not corrected, the code will return once the MCM detects the temperature threshold being exceeded again across two measurement trials. A reset alone is not a fix and should only be used after the actual cause has been identified and resolved.
How much does it cost to repair error code 050144 on a Cove dishwasher?
Repair costs vary widely depending on the cause. If the issue is a harness connection or a clogged filter, the repair may involve little to no parts cost and just a service call fee, typically in the range of $75 to $150. If the wash pump motor needs replacement, parts and labor combined can range from $200 to $450 or more. A Motor Control Module replacement tends to fall at the higher end of that range given the cost of the component.

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