Common problems and troubleshoot

[Tech_Marco]

For the Q model. 2020

No power when I turn it on today?
Check the fuse, which is right under the power socket. Swap out the backup fuse. Open the side panel and check for loose wire.

JLD612 shows EEEE?
The temperature is not reading correctly. Could be loose wire on pin 9 and 10 at the back.

Speaker keeps beeping?
Either temperature is too high, or water flow sensor not working well. Use a short piece of tubing to connect the inlet directly to the outlet. If it does not beep anymore, it could be water not flowing well in the laser machine. If it still beeps, open up the side panel, check for non straight water tube. You may rotate the water flow sensor(in between the water out and pump) so that gravity helps the sensor work well. For high temperature beeping, it could be loose connection of the temperature sensor, or a bad temperature sensor.