Thank you for your question! The TRIA Hair Removal Laser 4X is battery operated, but the battery is built-in and rechargeable. You don't have to replace it. ... The TRIA Laser is designed to work for several years until the battery no longer holds a charge.
2 Beeps -Motor disconnected
The motor has a bad connection. Check all the connections and leads between the motor and S-Drive. Check the position of the freewheel lever.
9 Beeps - Solenoid brake trip
The parking brakes have a bad connection. Check the parking brake and motor connections. Make sure all the system connections are secure.
When in doubt, read the manual :>D
Please restart your device. And check if the potential issue persists. If so, then I would first recommend that you reference the product manual (can use the table of contents) to determine how the lights should function under normal conditions
Question edited for misspelling / autocorrect.
You can check contactors by energising the signal wire circuit (the one that makes the solenoid work) and using a test meter to check for continuity on the Load wires. Or you can just get a new one for $11. Starters are a disposable, replaceable items.