Turn off the dishwasher and unplug it or switch off the circuit breaker
Remove the bottom rack
Check and clean the filter
Remove any visible food debris from the drain area
Inspect and clear the spray arms
Check the sink drain and garbage disposal for clogs
Clean the air gap if your sink has one
Inspect the drain hose for kinks or blockages
Disconnect and flush the drain hose if needed
Run a rinse cycle with hot water
Use a dishwasher-safe cleaner if buildup remains
Reassemble the parts
Restore power and test the dishwasher
Call a plumber or appliance technician if the clog persists