If your dishwasher stops mid-cycle, the most likely problem is a bad or clogged water inlet valve. When that valve fails, the dishwasher can drain the sump area and then stall before the next fill, which makes it seem like the dishwasher shuts off mid-cycle or the dishwasher cycle stops before finished. Next, check the door latch, since a worn or damaged latch can let the door switch tell the control board to stop the machine. It is also smart to check for fault codes, because many dishwashers will display an error that points you in the right direction fast. If no code helps, the control board may not be sending power where it should. Less often, a failed circulation pump or pump and motor assembly can cause the dishwasher to stop during cycle, especially if the unit fills but you hear only a humming sound or the wash arms never get proper water pressure. Enter your model number on RepairClinic.com to find the exact water inlet valve, door latch, control board, circulation pump, or pump and motor assembly that fits your specific dishwasher.
01 - Dishwasher Water Inlet Valve
The water inlet valve opens to allow water to enter the dishwasher. If the water valve fails, the dishwasher will stop in mid-cycle after the remaining water in the sump area has drained prior to the fill cycle. The water inlet valve coil can be tested for electrical continuity to help determine if the part is faulty. The valve could also be clogged. A clogged valve can not be cleaned and should be replaced.
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The dishwasher door needs to be properly latched for the appliance to work. If the latch is faulty, the door switch could signal the control board to stop the dishwasher in mid-cycle. Inspect the door latch for any damage and replace if necessary.
If the dishwasher stop mid-cycle, a fault code will usually be displayed to help diagnose the issue. Refer to the owner's manual or do an on-line search to find out more information regarding what the fault code means.
Common
04 - Dishwasher Touchpad
A stuck button or damaged touchpad could result in the dishwasher stopping mid-cycle. To determine if the touchpad is at fault, try pressing various buttons on the touchpad. If some of the buttons don’t respond, the touchpad might be defective. (Some manufacturers sell the touchpad separately from the control panel. Other manufacturers require that you purchase the touchpad and control panel together. If you cannot replace the touchpad individually, replace the touchpad and control panel.)
A dishwasher's user control and display board allows the user to select a wash and drying cycle and start the appliance. If the component is defective, it may cause the dishwasher to stop mid-cycle. Try pressure various buttons on the control to see if they all respond correctly. If some buttons work but others don't, it's likely the user control and display board is faulty and will need to be replaced with a new one.
The circulation pump uses a motor and impeller to force water up through the wash arms. If the circulation pump is defective, the dishes won’t be cleaned properly. If the motor isn’t making any noise or is just making a humming sound after the dishwasher has filled, the motor may be burned out. First, ensure that power is getting to the motor. Second, to ensure that the impeller can turn, check the pump housing for debris. If power is getting to the motor and the pump is clear of debris, the motor might need to be replaced. Be aware that the circulation pump may be challenging to replace, although many do-it-yourselfers ha...ve been successful with the replacement.
The motor drives an impeller to force water up through the wash arms. If the motor is defective, the pump impeller is broken, or some part of the pump is clogged, dishes won’t be cleaned properly. Make sure that power is getting to the circulation pump and motor. If power is getting to the pump and motor assembly but it still won’t run, replace the pump and motor assembly.