Fault Codes, Problems, and Causes

• F1.1 , Handpiece Bubble Circuit fault , Handpiece bubble circuit test did not detect a change in the signal , Remove and reinstall delivery system or try a different delivery system. Calibrate the DCD HP Bubble circuit or replace delivery system.

• F 1.2 , Canister Bubble Circuit , Canister bubble circuit test did not detect a change in signal , Calibrate DCD Canister Bubble circuit.

• F 3.1 , Shutter Fault , Shutter not in Correct state when checked, It does not respond to actuation to the correct state.

• F 4.2 , HVPS Communication fault , High voltage power supply communications time-out, Turn off laser for 30 seconds, restart, calibrate. Replace HVPS

• F 5.1 , HVPS Tolerance fault , High voltage power supply tolerance fault , Turn off laser for 30 seconds, restart, calibrate. Replace HVPS

• F 5.2 , HVPS Charge fault ,High voltage power supply charge time-out, Turn off laser for 30 seconds, restart, calibrate. Replace HVPS

• F 5.3 , HV Discharge fault , High voltage dump circuit test failed, Turn off laser for 30 seconds, restart, calibrate. Replace HV Dump PCB

• F 6.1 , Calibration fault, User calibration failed to find threshold HD energy within normal voltage or laser system failed to find Max HD energy within 60 pulses. It may be caused by Laser system mobility shocks may have shifted the laser head out of alignment. Aging laser head, flash lamps or laser head components, Calibrate again, try both laser heads. Turn off laser for 30 seconds, restart, calibrate again, If problem persists, contact a Candela Service ,Replace flashlamps, laser head, or failed optics.

• F 6.5 , Cal port Switch fault, DCD or ACC Cal port redundant switches indicate different states for longer than 1 second, Reinsert handpiece in Cal port. Inspect switches for bent or damaged switch arm(s). Verify if switch assembly moved, no longer actuates with handpiece installed. Replace 4-pin and/or 5-pin micro switches.

• F 7.1 , DI Fluid Low Temperature Fault, DI water is under temperature, Put the laser in standby state and allow sufficient time for laser to warm-up. Verify the water level, fill reservoir if needed, turn off laser for 30 seconds, restart the laser. clean or replace air filters, replace DI filter.

• F7.2, DI fuild high Temperature fault, DI water is over temperature, Turn off laser, allow time for system to cool down, check the DI water level, fill reserviot if needed. Turn off laser, allow time for system to cool down. Check the DI water level, fill reservoir if needed. Verify room temperature meets specifications of 65 – 85 F (18 C – 29 C). Verify the laser is more than 12 inches (60cm) from any wall. Turn off laser for 30 seconds and then restart. Clean or replace air filters.

• F 7.3, Fluid Flow Fault, DI water pump pressure fault. Low or no DI water pressure and/or flow. DI water system flow switch does not change when the power is turned on. DI water pump is not “On” or DI flow switch is not actuated. DI water level is low and/or there are air bubbles flowing through the fluid system, Turn off the laser system. Check the DI water level, refill reservoir if needed. Check for DI water leaks.Restart and turn off the laser 2 to 3 times to allow fluid system to pump water and flush out air bubbles. Replace bad flow switch.

• F7.4 , DI Fluid Temperature Sensor Fault, Temperature sensor circuit open or shorted, Turn off the laser system. Check DI water level and refill reservoir if needed. Check for DI water leaks. Restart and turn off the laser 2 to 3 times to allow fluid to pump water and flush out air bubbles. Replace temperature sensor.

• F 7.5 , DI fluid Level low fault, DI water Level is low, Fill the reservoir with clean DI water, if needed replaced level switch.

• F 8.2, DCD canister high pressure fault, Faulty pressure sensor overheated DCD canister, Checked DCD canister level, if the Canister is empty, replace it, replace level switch.

• F 8.3, Handpiece DCD Valve Fault, DCD Valve fails, Replace the delivery system, if problem persists, call us.

• F 8.4, DCD Canister Temperature Sensor fault, DCD temperature sensor fails, Turn off the laser system, allow it to cool down, and then restart the laser. If problem persists, contact Candela Service. Replace temp sensor.

• F9.1, Fluid warm up fault, DI temperature is not normal range after 60 minutes.

• F12.1, Low energy fault, Alex or Yag head energy of last treatment pulse is less than 14 percent low.

• F12.2, High Energy fault, Alex or Yag head Energy of last treatment pulse is more than 14 percent high.

• F12.4, Energy not balanced fault, Alex and Yag head energy is not evenly balanced between each sub-pulse (+/- 50 percent)

• F13.4 Foot switch fault, Redundant footswitches indicate different states for greater than 1 second.

• F14.1, 755 nm simmer fault, replaced the HVPS,

• F14.2, 1064 nm Simmer Fault, replaced the HVPS.

• F15.1, Delivery system transmission low fault, low transmission fault.

• F15.2, Delivery system transmission high fault, high TX.

• F18.2, Fluid Circuit fault, DI circuit calibration fault, Perform A/Y circuit cal.

• F19.5, HV dump fault, high voltage dump circuit test failed discharge error.

• F26.1, Internal software Fault, An internal software fault occurred, I/O not respond on entry to ready CUI/IO comm Error.

• F26.2, Internal software fault (shows in warning log only), an internal software fault occurred, used CAL debug, EEProm Write Failure.