VALO Power Supply Troubleshooting: Common Issues Fixed
By Ultradent Products, Inc. | Published: 2026-10-20
Category: How-to Guides
Learn how to diagnose and fix common VALO curing light power supply problems, from no power to intermittent operation, with step-by-step guidance.
Quick Answer
Most VALO power supply issues stem from loose connections, worn cables, or a faulty power adapter. Follow the diagnosis steps below to identify and fix the problem quickly.
Why a Reliable Power Supply Matters
A consistent power supply is critical for your VALO curing light to deliver the full light output needed for effective polymerization. Even minor voltage drops can reduce curing depth and extend procedure time, which may compromise restoration quality.
Ultradent’s VALO Power Supplies are designed for optimal performance with your curing light, but like any electronic component, they can develop issues over time. Understanding the common failure points helps you resolve problems without unnecessary downtime.
When to Replace vs. Repair
If the power supply unit itself is damaged (e.g., cracked casing, frayed cable near the adapter block), replacement is safer and more reliable than attempting a repair. The VALO Power Supplies from Ultradent are a cost-effective solution at USD 199.50, compared to the catalog price of USD 285.00, and ensure consistent power delivery.
For issues like loose connections at the light handle or intermittent power, cleaning contacts and reseating cables often resolves the problem without a new purchase.
Diagnosis and Fix Steps
- Symptom: No power, light does not turn on: Check that the power adapter is firmly plugged into the wall outlet and the light handle. Inspect the cable for visible damage. If using a power strip, test the outlet directly. If the light still does not power on, try a different outlet or a known-working power supply.
- Symptom: Light flickers or turns off during use: This often indicates a loose connection at the handle or a damaged cable. Gently wiggle the cable near the handle and the adapter block. If the light flickers, the cable or connector may need replacement. If the cable is damaged, stop using it immediately to avoid short circuits. Replace with a new VALO Power Supply.
- Symptom: Reduced light output or slow curing: Low power can cause the curing light to underperform. Ensure the power supply is rated for your specific VALO model (check label on adapter). Clean the light’s lens and check for debris in the power connector port. If output remains low after cleaning and using the correct power supply, the light itself may need service.
- Symptom: Power supply gets very hot: Some warmth is normal, but excessive heat indicates a failing component. Unplug the unit and let it cool. Check for obstructions blocking ventilation. If the adapter is hot to the touch after normal use, replace it. Do not attempt to repair a hot adapter. Replace it with a genuine VALO Power Supply to ensure safety.
Product Facts
- VALO™ Power Supplies: Ensure consistent power supply for your VALO™ curing lights with Ultradent’s reliable power supplies, designed for optimal performance. Using a genuine VALO Power Supply eliminates voltage fluctuations that can cause inconsistent curing and potential damage to the light.
VALO™ Power Supplies
