Cove Dishwasher Error Code 800140

Error code 800140 indicates that the drain pump motor (MOT4) ran for longer than the allowed time during a drain cycle, or that the secondary pressure check system could not confirm successful drainage. The dishwasher stops the cycle to prevent damage and alert the user to a drainage problem. This is most often caused by a clog in the filter, drain hose, or sink connection.

You should not continue running the dishwasher while this error is active. The fault indicates the appliance cannot drain properly, and operating it with standing water in the tub can put unnecessary strain on components and may lead to water overflow or odors. Resolve the drainage issue before resuming normal use.

If the problem is simply a clogged filter or drain hose, the repair costs nothing beyond your time. If a component like the drain pump motor needs replacement, parts and labor costs can range from roughly $150 to $400 or more depending on your location and the specific parts required. Getting a diagnostic visit from a qualified technician will give you a more accurate estimate for your situation.

Start by removing and cleaning the drain filter located at the bottom of the dishwasher tub. Next, inspect the drain hose for kinks or blockages and confirm the sink drain or garbage disposal connection is clear and open. If the physical drain path is unobstructed and the error continues to appear after running a cycle, a component such as the drain pump motor or pressure sensor may need professional testing and possible replacement.

A reset may temporarily clear the displayed code and allow the dishwasher to attempt another cycle, but if the underlying drainage restriction or component fault is not corrected, the error will return. Address the root cause first, such as cleaning the filter or clearing the drain hose, and then reset the unit to confirm the issue is resolved.