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Error code reference

Cove Dishwasher Error Code 050186

Water flow problem.

Cove codesCove dishwasher codes

Water flow problem.

First step from the service manual

Verify the water supply is on.

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

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What 050186 means on a Cove dishwasher

Error code 050186 on a Cove dishwasher indicates a water flow problem, meaning the machine is not receiving adequate water or is detecting insufficient flow during a fill cycle. This code is triggered when the control board determines that water is not entering the tub at the expected rate or volume within a set timeframe. The water delivery system in a Cove dishwasher involves several interconnected components: the household water supply valve, the inlet hose, the water inlet valve assembly, and the float switch or flow sensor that confirms water presence.

The most common starting point for diagnosis is confirming that the water supply shutoff valve beneath or behind the dishwasher is fully open. A partially closed or obstructed valve will restrict flow enough to trigger this fault. Beyond the supply valve, a kinked or pinched inlet hose can produce the same restriction. The water inlet valve itself, which is an electrically actuated solenoid component, can fail mechanically or electrically, preventing water from entering even when supply pressure is adequate.

If the supply and hose check out, the inlet valve solenoid or the flow detection components should be inspected. Low household water pressure can also cause this error, particularly if other fixtures in the home are running simultaneously. Debris or mineral scale buildup inside the inlet valve screen is another common culprit, especially in areas with hard water. Clearing the screen or replacing the inlet valve typically resolves the fault in those cases.

Source: manufacturer service documentation.

Common causes of 050186

  1. 01

    Water supply valve closed or partially closed

    Wiring / connection

    The shutoff valve supplying water to the dishwasher may be fully or partially closed, blocking flow before it even reaches the appliance. Locate the valve under the sink or behind the unit and confirm it is turned fully open.

  2. 02

    Kinked or pinched inlet hose

    Wiring / connection

    The water inlet hose running from the supply valve to the dishwasher can become kinked, especially if the unit was recently moved or installed. Pull the dishwasher out slightly and inspect the hose along its entire length for bends or compression.

  3. 03

    Clogged inlet valve screen

    Wiring / connection

    A fine mesh screen inside the water inlet valve can accumulate mineral deposits or debris over time, restricting flow enough to trigger this error. The screen can often be cleaned, but if the valve body is damaged, the full valve assembly will need replacement.

  4. 04

    Failed water inlet valve solenoid

    Part replacement

    The water inlet valve uses an electrically actuated solenoid to open and allow water in. If the solenoid has failed, the valve will not open regardless of supply pressure, and the dishwasher will fault on the fill cycle. Replacement of the inlet valve assembly is required.

  5. 05

    Low household water pressure

    Wiring / connection

    Cove dishwashers require a minimum water pressure to fill correctly. If pressure in the home is low due to simultaneous fixture use or a supply issue, the dishwasher may not fill fast enough and will trigger this code. Check pressure at a nearby faucet and run the dishwasher when demand on the water system is low.

See the test procedure for each cause

Frequently asked questions about 050186

What does 050186 mean on a Cove dishwasher?
Error code 050186 on a Cove dishwasher indicates a water flow problem, meaning the appliance is not detecting sufficient water entering the tub during a fill cycle. The dishwasher's control system monitors water delivery and triggers this fault when flow is inadequate or absent. Common causes include a closed supply valve, a kinked inlet hose, a clogged inlet valve screen, or a failed inlet valve solenoid.
How do I fix error code 050186 on my Cove dishwasher?
Start by confirming the water supply shutoff valve is fully open and that the inlet hose has no kinks or pinches. Next, check whether household water pressure is adequate by running a nearby faucet. If supply and hose conditions are normal, inspect or clean the inlet valve screen for mineral buildup, and if the valve solenoid has failed, replace the water inlet valve assembly.
Is it safe to keep using my Cove dishwasher when error 050186 is showing?
The dishwasher will typically not complete a wash cycle while this error is active, as it cannot fill properly. Attempting to run cycles repeatedly without resolving the underlying flow issue will not damage the dishwasher, but it is best to diagnose and correct the problem before continued use to avoid incomplete wash results.
Will resetting my Cove dishwasher clear error code 050186?
A reset may temporarily clear the error code from the display, but if the underlying water flow problem has not been corrected, the code will return as soon as the dishwasher attempts to fill again. Address the root cause first, then reset the machine to confirm the fault is resolved.
How much does it cost to repair a Cove dishwasher showing error 050186?
If the fix is as simple as opening a supply valve or straightening a hose, there is no parts cost involved. Cleaning a clogged inlet valve screen is also typically low cost. If the water inlet valve solenoid has failed and needs replacement, parts and labor combined can range from around $100 to $250 or more depending on your location and service provider.

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