If your dishwasher is not draining water properly only when you are using the garbage disposer at the same time, there may be an issue with the connection between the dishwasher and the garbage disposer. Here are a few steps you can take to troubleshoot and potentially fix the problem:
Check the garbage disposer connection: Start by inspecting the connection between the dishwasher and the garbage disposer. Ensure that the drain hose from the dishwasher is properly connected to the garbage disposer. Make sure there are no kinks, blockages, or leaks in the hose. Tighten any loose connections if necessary.
Clear any clogs or blockages: If the drain hose appears to be clear, there might be a clog or blockage in the drain system. First, turn off the dishwasher and garbage disposer, and disconnect the drain hose from the garbage disposer. Inspect the hose for any debris or obstructions and remove them. Next, check the garbage disposer's drain pipe or the air gap (if your dishwasher has one) for any clogs or blockages. Use a plumber's snake or a straightened coat hanger to carefully clear any debris.
Ensure proper garbage disposer functioning: Verify that your garbage disposer is working correctly. Run the garbage disposer separately and check if it drains water properly. If the disposer is not working or draining properly, consult the disposer's user manual or contact a professional plumber for assistance.
Clean the dishwasher filter: A clogged or dirty dishwasher filter can also cause drainage problems. Refer to your dishwasher's manual for instructions on locating and cleaning the filter. Remove any debris or buildup that may be hindering proper drainage.
Check the dishwasher drain pump: If none of the above steps resolve the issue, there may be a problem with the dishwasher's drain pump. The drain pump is responsible for pumping out the water from the dishwasher. It could be clogged, faulty, or damaged. In this case, it is advisable to contact a professional appliance repair technician to diagnose and fix the problem.
Remember to always turn off the dishwasher and disconnect it from the power supply before attempting any repairs or inspections. If you are unsure or uncomfortable performing any of these steps, it's best to seek assistance from a qualified technician or plumber to avoid any further damage to your dishwasher.