Quick Checks
Check the Drain Hose
Make sure the drain hose isn't kinked, crushed, or clogged. A blockage here is a common culprit. Straighten any kinks and ensure the hose is properly connected to the drain.
Inspect the Dishwasher Filter
Most dishwashers have a filter in the bottom of the tub. Remove and clean it thoroughly under running water. Food particles trapped here can restrict water flow.
Look at the Sink Drain
If your dishwasher drain hose connects to your garbage disposal or sink drain, make sure the sink drain isn't clogged. A clogged sink can prevent the dishwasher from draining properly.
Common Causes
Clogged Dishwasher Filter
DIYThe filter traps food particles to prevent them from recirculating. Over time, it can become clogged, restricting water flow. Regular cleaning is essential.
Kinked or Clogged Drain Hose
DIYThe drain hose carries wastewater to your sink drain or garbage disposal. Kinks or clogs in the hose prevent proper drainage.
Clogged Air Gap
DIYAn air gap prevents dirty water from flowing back into the dishwasher. If it's clogged, it can hinder drainage. Clean the air gap with a small brush or wire.
Malfunctioning Drain Pump
Call ProThe drain pump pushes water out of the dishwasher. If it's failing, it may not be able to pump effectively. You might hear a humming sound, but no draining.
Faulty Check Valve
Call ProThe check valve prevents water from flowing back into the dishwasher after it's drained. If it's stuck or broken, it can cause drainage issues.
Control Board Issues
Call ProIn some cases, a faulty control board may not be sending the signal to activate the drain pump. This is rare, but possible.
When to Call a Professional
- If you've cleaned the filter, checked the hoses, and the dishwasher still won't drain, it's time to call a professional.
- If you suspect a problem with the drain pump, check valve, or control board, these repairs typically require specialized tools and knowledge.
- If you notice any unusual noises coming from the dishwasher during the drain cycle, it could indicate a failing pump or other mechanical issue.
- If you're uncomfortable working with plumbing or electrical components, it's best to leave the repair to a qualified technician. Call Altair Home Solutions at 714-769-6013 for fast, reliable service in Orange County and Los Angeles.
Safety Warning
Always disconnect power to the dishwasher before attempting any repairs. Water and electricity can create a dangerous situation.
Estimated Repair Cost
$150-$450
Frequently Asked Questions
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