Dishwasher Not Draining: Diagnosis & Repair Guide
Is your dishwasher not draining? This guide walks you through the most common causes, how to diagnose the problem, and when to call a professional for same-day repair in Toronto & GTA.
Most dishwasher not draining issues can be diagnosed quickly and repaired same-day by our licensed technicians. We serve all of Toronto, Mississauga, Scarborough, North York, and surrounding areas.
Common Causes & Diagnosis
Clogged Filter / Food Trap
The dishwasher filter at the bottom of the tub catches food particles. When clogged, water can't drain. This is the most common cause and a quick DIY fix.
Faulty Drain Pump
If the drain pump motor fails, water won't drain despite a clean filter. You may hear humming without drainage.
Blocked Drain Hose
The drain hose can become kinked or clogged with grease. Check that the hose is unobstructed and properly routed.
Garbage Disposal Connection
If your dishwasher drains through a garbage disposal, a blocked disposal or covered knockout plug can prevent drainage.
Control Board Issue
A faulty control board may not send the signal to initiate the drain cycle properly.
DIY vs. Professional Repair
| Fix | DIY Possible? | Recommended | Cost Range |
|---|---|---|---|
| Filter / Drain Cleaning | Yes | DIY First | Free |
| Belt / Fuse Replacement | Experienced only | Professional | $80–$150 |
| Fan Motor / Element | Not recommended | Professional | $120–$250 |
| Control Board / Compressor | No | Professional | $200–$400 |
Dishwasher Repair Cost in Toronto & GTA
| Repair Type | Typical Cost | Includes |
|---|---|---|
| Diagnostic & Minor Repair | $80 – $150 | Labour only |
| Part Replacement (common) | $150 – $280 | Parts & Labour |
| Major Component Repair | $250 – $400 | Parts & Labour |
| Complex / Compressor Repair | $300 – $450+ | Parts & Labour |
Common Causes & Diagnosis
Problem Cause 1
Description of the cause and what to check.
Problem Cause 2
Description of the cause and what to check.
Problem Cause 3
Description of the cause and recommended fix.