
Why Do Water Feature Stop Working?
Troubleshooting tips, common issues, and how to keep your fountain flowing beautifully.
Ever walked by your once-soothing water feature only to find it dry, gurgling, or completely silent? Short answer: it's usually clogs, low water, or a tired pump. But don't ditch your fountain yet—read on for easy fixes, maintenance tips, and how to keep your garden water feature flowing happily!
Common Causes of Water Feature Failures
1. Clogs and Blockages
Pump and Filter Obstructions
The heart of your fountain is its pump. Over time, leaves, dirt, or algae can clog the pump intake or filter, reducing or stopping water flow.
Nozzle Blockages
The decorative outlets or jets may accumulate mineral deposits or algae, especially in outdoor fountains, which can restrict water flow or create uneven water pressure.
2. Electrical Issues
Power Supply Failures
If your fountain suddenly stops, check the power source first. Tripped GFCI outlets, faulty extension cords, or dead wall sockets are common culprits.
Pump Malfunctions
Pumps wear out over time. If you've ruled out a clog and the unit still hums or doesn't run, the motor may be burned out or the impeller jammed.
3. Water Level Problems
Evaporation
Hot weather and wind can quickly lower your water levels. If the pump runs dry, it may overheat and cease to function.
Leaks
Cracks in the basin or tubing can lead to slow, unnoticed leaks. If your water level drops frequently, even with mild weather, you may have a hidden leak.

4. Seasonal Factors
Freezing Temperatures
Outdoor water features are vulnerable to freeze damage. When water freezes inside pipes or pumps, it expands and can cause materials to crack.
Sun Exposure
Direct sunlight increases water evaporation and encourages algae growth, both of which can lead to performance issues if not addressed.
5. Maintenance Oversights
Infrequent Cleaning
Failing to clean your fountain regularly can result in clogged filters, algae buildup, and unpleasant odours.
Neglected Repairs
Ignoring small cracks or minor pump issues can result in more serious (and costly) failures down the road.
Troubleshooting Steps
Step 1: Check Power and Connections
- Inspect GFCI Outlets: Reset the outlet if it's tripped.
-
Examine Power Cords: Look for visible fraying or water exposure.
Step 2: Assess Water Levels
- Refill as Necessary: Ensure water covers the pump completely.
-
Identify Leaks: Dye tests or checking for damp areas under the water feature can reveal hidden leaks.
Step 3: Clean Components
- Disassemble and Clean: Remove debris from the pump, tubing, and nozzles.
-
Use Appropriate Cleaners: Avoid harsh chemicals and opt for natural or pump-safe solutions.
Step 4: Inspect for Damage
- Check for Cracks or Chips: Inspect basins and tubing, especially in ceramic or stone models.
-
Test Pump Functionality: If it vibrates but doesn't circulate water, the impeller may need replacing.
Preventative Measures
- Regular Maintenance: Clean your water-feature fountain and inspect the pump monthly.
- Proper Winterisation: Drain and store water feature indoors, or use covers and antifreeze in colder climates to prevent freezing.
-
Use Water Treatments: Prevent algae and mineral buildup with safe, fountain-specific solutions.
FAQs
What should I do if my water feature pump isn't working?
- Check the power first, then clean the pump.
- Replace the pump if it's more than a few years old or shows signs of wear.
How can I prevent algae growth in my fountain?
- Use algaecides, especially in sunny locations.
- Install a UV clarifier for large or outdoor water features to keep water crystal clear.
When to Call a Professional
If basic troubleshooting doesn't fix your water feature —or if you notice electrical issues, severe leaks, or structural damage—it's time to consult a professional. Continuing to operate a malfunctioning water feature can cause further damage or void warranties.
Final Thoughts
Understanding why water feature fountains stop working helps you protect your investment and enjoy their soothing presence longer. Whether it's a clogged pump, power issue, or simple maintenance oversight, the fix is often easier than you think.
Other contents you might like