There are 2 major reasons for why you may be getting your cooling system error: Water Flow or Temperature issues. Go through the guide below (in order) to diagnose and fix your cooling system error.
1) Tubes Are Hooked Up Incorrectly
Double check that your water tubes have been hooked up correctly. Blue tube should match the blue stickers on both the HexBox and Laser, and clear tube should match the white stickers. Also ensure that your HexBox power cord is plugged into both your HexBox and Laser.
2) Not Enough Water in HexBox
Open the HexBox cap and ensure that the water level covers both holes in the water tank. If water isn’t coming out of the top hole, add more water.
3) Other HexBox Issues
Unscrew the top of your HexBox (metal lid). Double check that none of the tubes have come disconnected, and listen to ensure the pump is running. If any of the tubes have come disconnected, customer would notice a water leak.
4) Water Flow Blockage
Something could be lodged in your pump, or tubes that’s blocking water flow.
5) Damaged/Faulty Sensor
If none of these fix the error, then your cooling sensor is damaged/faulty and your laser needs to be serviced.
1) Undesirable Environmental Temperature
The temperature in your room might be too hot or too cold. The recommended environmental temperature is 60-85F. While you can run the laser at hotter or colder temperatures, the tube is glass and is filled with water, which makes it especially vulnerable to extreme temperatures.
2) HexBox Fan Issue
Unscrew the top of your HexBox (metal lid). Listen to ensure the fan that’s blowing towards the water tank is running. If it is not, the fan needs to be replaced.
3) Damaged/Faulty Sensor
If none of these fix the error, then your cooling sensor is damaged/faulty and your laser needs to be serviced.