Bosch Dishwasher not draining – Expert Tips from YB Appliance Ottawa
Is your Bosch dishwasher failing to drain properly after a cycle?
Standing water, strange noises, or error codes like E15/E24 are clear signs of a drainage issue. At YB Appliance Ottawa, we specialize in diagnosing and repairing Bosch dishwasher drain problems—here’s how we can help.
Common Causes of Bosch Dishwasher Drain Failure
- Clogged Drain Hose
A kinked or blocked drain hose is the #1 culprit. Food debris, grease, or glass shards can obstruct the hose, preventing water from draining properly. - Faulty Dishwasher Pump
The drain pump is responsible for forcing water out. If it’s worn out or jammed, your dishwasher will retain water. - Blocked Filter or Drain Basket
A dirty filter or food trap can halt drainage. Regular cleaning is critical to avoid backups. - Garbage Disposal Connection Issues
For dishwashers linked to a disposal, a clogged air gap or improper installation can cause drainage failures.
Step-by-Step Troubleshooting Guide
Step 1: Inspect the Drain Hose
- Disconnect the hose beneath the sink and check for twists or clogs.
- Flush it with hot water to clear grease buildup.
- Ensure proper installation—the hose should have a high loop to prevent backflow.
Step 2: Check the Dishwasher Pump
- Locate the pump (usually at the bottom front of the dishwasher).
- Remove debris like glass fragments or fruit pits that may jam the impeller.
- Test the pump motor with a multimeter for continuity.
Step 3: Clean the Filter and Drain Basket
- Remove the lower rack and unscrew the filter assembly.
- Soak the filter in warm, soapy water to dissolve grease.
- Clear the drain basket of any food particles.
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