You can easily tell if your dishwasher has stopped draining by observing a few key signs:
Standing water in the dishwasher: After the dishwasher completes its cycle, open the door and check the bottom of the dishwasher. If there is standing water in the bottom, it's a clear indication that the dishwasher hasn't drained properly.
Water pooling in the sink: If the dishwasher is connected to the same drain as your sink, water might start to pool in the sink when you run the dishwasher. This happens because the dishwasher's wastewater is backing up into the sink due to the drainage issue.
Unusual sounds: If the dishwasher isn't draining correctly, you may hear gurgling or humming sounds during the cycle. These noises can be a sign of water struggling to drain properly.
Dirty or soapy dishes: If the dishwasher isn't draining as it should, it won't be able to rinse and drain properly during the wash cycle. This can result in dirty or soapy water remaining on the dishes after the cycle is complete.
Error codes or warning lights: Many modern dishwashers have sensors that can detect drainage issues. If there's a problem with draining, your dishwasher may display an error code or a warning light on the control panel.
If you notice any of these signs, it's essential to address the drainage issue as soon as possible. A clogged or malfunctioning drain in your dishwasher can lead to more significant problems, such as leaks or damage to the dishwasher components. Refer to the previous response on how to address a clogged garbage disposal, as that could be one common reason for drainage problems in the dishwasher if they share the same drain line. If the dishwasher continues to have draining issues after attempting to unclog the disposal, it's best to call a professional appliance repair technician to diagnose and fix the problem.