How to Fix a Dishwasher That Won’t Fill with Water: Fast Appliance Repair’s Guide for Calgary


Dishwasher Not Filling with Water? How to Troubleshoot and Fix by Fast Appliance Repair in Calgary

A dishwasher that won’t fill with water can be a major inconvenience. At Fast Appliance Repair, we understand how important a functional dishwasher is for your home. In this guide, I’ll explore the common causes and provide solutions to get your dishwasher back to working order.

Common Causes of Dishwasher Not Filling with Water

1. Clogged Water Inlet Valve

The water inlet valve controls the flow of water into the dishwasher. If it’s clogged with debris, water can’t enter. Cleaning or replacing the valve can resolve the issue.

2. Faulty Float Switch

The float switch monitors the water level inside the dishwasher. If it’s malfunctioning, the dishwasher might think it’s already full. Replacing the float switch is usually the best solution.

3. Blocked Water Supply Line

The water supply line can become blocked with mineral deposits or debris. This prevents water from reaching the dishwasher. Cleaning or replacing the supply line can fix this problem.

4. Malfunctioning Door Switch

The door switch ensures the dishwasher door is closed properly. If it’s faulty, the dishwasher won’t fill with water. Replacing the door switch can resolve the issue.

5. Issues with the Control Board

The control board manages the dishwasher’s functions. If it’s defective, the dishwasher might not fill with water. A professional can diagnose and fix control board issues.

6. Poor Installation

Improper installation can cause filling problems. Ensure the dishwasher is level and the water supply line is installed correctly. Professional installation can prevent many issues.

Fixing Your Dishwasher’s Filling Problem

1. Clean or Replace the Water Inlet Valve

Turn off the power and water supply to the dishwasher. Locate the water inlet valve, usually at the bottom of the dishwasher. Disconnect the water supply line and electrical connections. Check for clogs and clean the valve if necessary. If cleaning doesn’t help, replace the valve. Reconnect everything and test the dishwasher.

2. Replace the Float Switch

Unplug the dishwasher and remove the lower kickplate. Locate the float switch and disconnect the wires. Remove the mounting screws and take out the old switch. Install the new switch by reversing these steps. Reassemble the dishwasher and test it.

3. Clear or Replace the Water Supply Line

Turn off the water supply to the dishwasher. Disconnect the water supply line and inspect it for blockages. Use a brush to clear any debris. If the line is severely clogged, replace it. Reattach the supply line and test the dishwasher.

4. Replace the Door Switch

Unplug the dishwasher and remove the inner door panel. Locate the door switch and disconnect the wires. Remove any mounting screws and take out the old switch. Install the new switch by reversing these steps. Reassemble the dishwasher and test it.

5. Diagnose and Repair the Control Board

Diagnosing control board issues can be complex. If you suspect the control board is faulty, call Fast Appliance Repair. Our technicians can diagnose the problem and replace the control board if needed.

6. Ensure Proper Installation

Check that your dishwasher is level. Adjust the feet if necessary. Ensure the water supply line is properly installed and not kinked. If you’re unsure about the installation, contact Fast Appliance Repair for professional assistance.

Preventative Maintenance Tips

1. Regularly Clean the Water Inlet Valve

Check and clean the water inlet valve every few months. This prevents debris from building up and causing blockages.

2. Inspect the Water Supply Line

Periodically check the water supply line for clogs and kinks. Clear any blockages and straighten any kinks to maintain proper water flow.

3. Use the Right Detergent

Use dishwasher-safe detergent. Using the wrong detergent can cause suds, which can lead to filling issues.

4. Avoid Overloading the Dishwasher

Overloading the dishwasher can strain the water inlet valve and other components. Follow the manufacturer’s guidelines for load sizes to ensure efficient operation.

5. Perform Regular Maintenance

Schedule regular maintenance with Fast Appliance Repair. Our technicians can inspect your dishwasher, clean components, and address any potential issues before they become major problems.

When to Call a Professional

While some issues can be fixed at home, others require professional help. If you’re unsure about any step, or if the problem persists, contact Fast Appliance Repair. Our experienced technicians can diagnose and fix the issue quickly. We serve Calgary and the surrounding area, ensuring your dishwasher is back in working order promptly.


A dishwasher that won’t fill with water can disrupt your daily routine. Understanding the common causes and how to fix them can save you time and frustration. Regular maintenance and proper use can prevent many issues. When in doubt, don’t hesitate to call Fast Appliance Repair – Dishwasher Repair Services. We’re here to help residents in Calgary and the surrounding area keep their appliances running smoothly.

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