If your dishwasher starts a cycle but no water enters the machine, the cause is usually a water supply issue, faulty inlet valve, or safety switch rather than complete appliance failure.
When no water enters, the dishwasher cannot clean properly.
The Most Common Reasons This Happens
1. Water Supply Turned Off
The shut-off valve under the sink may be partially or fully closed. If water cannot reach the appliance, the dishwasher will not fill.
This is one of the simplest causes.
2. Blocked or Kinked Inlet Hose
If the inlet hose is bent or clogged, water flow may be restricted.
Check for visible kinks behind the appliance.
3. Faulty Water Inlet Valve
The inlet valve controls water entering the dishwasher. If it fails, the machine may run without filling.
4. Door Not Properly Closed
Dishwashers contain safety switches that prevent operation if the door is not securely shut.
If the machine is also not starting at all, see:
→ Why Is My Dishwasher Not Turning On?
5. Float Switch Issue
Dishwashers use a float switch to prevent overfilling. If it becomes stuck, the machine may incorrectly detect that it is already full.
Is This Normal?
It may be minor if:
- The water supply was recently adjusted
- The hose is visibly kinked
- The issue happened once
It may require attention if:
- The dishwasher consistently runs dry
- You hear unusual humming without water entering
- The cycle stops prematurely
What You Can Do
If your dishwasher is not filling with water, you can:
- Check the shut-off valve
- Inspect the inlet hose
- Ensure the door closes firmly
- Listen for valve activation sounds
If the problem continues after basic checks, professional inspection may be required.
For more related issues, see:
→ Dishwasher Problems Explained
→ Appliance Problems Explained