How to fix F13.4 fault message on Candela pro series devices
First, we need to understand the causes of this fault F13.4 which is mainly because Footswitch is stuck “On” while going into the Ready state for longer than 1O seconds.
Now to the fix, how do we fix this problem easily?
- Make sure the footswitch cable is not compressed.
- Change to the fingerswtich.
- If problem persists, contact Laser-Gulf service representative for system servicing.