Your dishwasher is one of the hardest-working appliances in your Vancouver home. So when it stops draining properly, the inconvenience hits fast — standing water, greasy dishes, and a kitchen that suddenly feels out of commission.

At Evo Appliances, we repair dishwashers across Vancouver, Burnaby, Richmond, and the Lower Mainland every day. In this guide, we cover the most common reasons a dishwasher fails to drain and what you can do before calling a technician.

Why Is My Dishwasher Not Draining?

Several issues can cause a dishwasher to hold water. Most fall into a handful of categories: blockages, pump failures, and drain hose problems. Here is what to look for.

1. Blocked Drain Basket or Filter

The first place to check is the drain basket at the bottom of your dishwasher. Over time, food particles, broken glass, and debris collect here. If the basket is clogged, water has nowhere to go.

• Turn off the dishwasher and unplug it
• Remove the bottom rack
• Unscrew or pop out the drain basket cover
• Clear any debris you find
• Rinse the filter under hot water

This is the most common cause and the easiest to fix yourself. Make it part of your routine every few weeks.

2. Clogged Drain Hose

The drain hose carries wastewater from your dishwasher to your sink drain or garbage disposal. If it is kinked, twisted, or clogged with buildup, water backs up into the dishwasher.

To inspect the hose, pull the dishwasher out slightly and check for kinks or blockages. Disconnect and run water through to test. If the hose is damaged, replacement is safest.

3. Faulty Drain Pump

Dishwashers have a dedicated drain pump that forces water out during the cycle. When the pump fails, you will usually hear an unusual humming noise or no noise at all during the drain phase. Other signs include water sitting at the bottom after every cycle or the dishwasher stopping mid-cycle.

Pump replacement is a professional repair. Attempting it without experience risks damaging other components or leaking during reassembly.

4. Garbage Disposal Connection Issue

Many Vancouver homes connect their dishwasher drain hose to the garbage disposal. If the disposal is clogged or the knockout plug was not removed during installation, water cannot drain properly.

Check that your garbage disposal is running freely and the drain connection is secure. If you recently had a new disposal installed, verify the plumber removed the dishwasher knockout plug.

5. Air Gap Issues

Some Vancouver homes have an air gap fitting on the sink — that small metal cylinder near your faucet. Its job is to prevent backflow from the drain into the dishwasher. If the air gap is clogged, water backs up into your dishwasher.

Clean the air gap by removing the cap and clearing any debris inside. This is a quick fix that gets overlooked surprisingly often.

When to Call a Vancouver Appliance Technician

Some fixes are DIY. Others require a licensed professional. Call us if:

• The problem persists after clearing the filter and drain basket
• You hear pump humming but no draining occurs
• There is water leaking onto your kitchen floor
• Your dishwasher is showing an error code you cannot resolve

Preventative Maintenance Tips for Vancouver Homeowners

• Scrape dishes before loading — you do not need to pre-rinse, but large food scraps should go in the trash
• Run hot water at the tap before starting a cycle — this helps the dishwasher start with hot water already in the line
• Use a dishwasher cleaner once a month — it breaks down grease and limescale buildup
• Check and clean the door gasket — a warped gasket causes leaks
• Inspect drain connections seasonally — especially in older Vancouver homes with aging plumbing

Serving Vancouver, Burnaby, Richmond, and the Lower Mainland

Evo Appliances provides same-day dishwasher repair across Metro Vancouver. Our technicians are trained on all major brands including Bosch, Miele, GE, Samsung, LG, and Whirlpool.

If your dishwasher is not draining or showing any sign of failure, do not wait. What starts as a small issue often becomes a larger repair — or a full replacement — if ignored.

Book Your Repair Today

Call (604) 200-3054 to reach our Vancouver service team. We offer free estimates, transparent pricing, and repairs done right the first time. Same-day appointments are available across Vancouver, Burnaby, and Richmond.