What is Bubble Circuit Error in Candela Laser Device?
Laser devices become an integral part of the medical and aesthetic treatments worldwide. However, like any other equipment, they can encounter errors that may disrupt their operation. One such error is the Bubble Circuit Error, which can manifest in two primary forms: Fault 1.1 (Handpiece Bubble Circuit) and Fault 1.2 (Canister Bubble Circuit).
Understanding these errors, their causes, and how to resolve them is crucial for maintaining the efficiency of your Candela laser device. This blog will delve into the details of Bubble Circuit Errors, how to clear them, and other essential checklists to ensure your device operates smoothly.

Error Code: Fault 1.1 - Hand Piece Bubble Circuit
The Fault 1.1 error code indicates an issue with the handpiece bubble circuit. This candela error code occurs when air bubbles are detected in the handpiece.The presence of air bubbles can interfere with the functioning of the device’s performance and potentially compromise patient safety.
Possible causes of Candela error code 1.1
- Air trapped in the handpiece during installation or maintenance
- Leakage in the cryogen gas line connected to the handpiece
- Improper attachment of the hand piece
- Issue with the power supply
Error Code: Fault 1.2 - Canister Bubble Circuit
The Fault 1.2 error code indicates an issue with the Canister Bubble Circuit. This error occurs when the air bubbles are detected within the canister itself, leading to inadequate cryogen flow.
Possible causes of Candela error code 1.2
- Air entering the canister during refilling or maintenance
- Leakage in the canister or its connecting devices
- If the device is not tightened properly
How to Solve Bubble Circuit Error Codes?
Laser engineers use the procedure named “purge” to eliminate the air bubbles from the hand piece and cryogen system. This can be used in resolving bubble circuit errors(Fault 1.1 and Fault 1.2). Here’s how purge is performed:
Once the device shows candela error codes fault 1.1 or 1.2, go to the display screen of your candela device and click the purge option. The device will start eliminating the air bubbles from the hand piece and canister system. Once the air bubbles are eliminated, the device will regain its original power and start functioning properly.
Other Checklist to Check
To ensure your Candela laser device operates without interruptions, here are some additional checks you should perform:
a. Check for cryogen gas leakage
- Inspect the cryogen gas lines and connections for any signs of leakage.
- Replace any damaged or worn-out components immediately.
b. Verify handpiece functionality
- Ensure the handpiece is working properly and is free from leaks.
- Check for any visible damage to the handpiece or its connectors.
c. Inspect the circuit board
- Examine the device’s circuit board for any signs of damage, such as burnt components or loose connections.
- Ensure all cables and connectors are securely attached.
- If you suspect a circuit board issue, contact a qualified technician for further diagnosis and repair.
The bubble circuit error in Candela Laser Devices can disrupt operations if not addressed promptly. By following the troubleshooting steps outlined above—checking for leaks, performing a spurge, and ensuring proper installation—you can effectively resolve this issue and maintain optimal device performance.
If you’re experiencing troubleshoots with your Candela laser devices, connect with Merge LLC. our experienced laser engineers can guide you throughout the journey ensuring the safety and efficacy of the device, offering optimal patient outcomes.
Contact us today!