Printer is Cooling Down

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The Glowforge Basic and Plus feature a closed-loop liquid cooling system that uses the air from the room to remove heat. It is designed to be used when the temperature next to your Glowforge is between 60 degrees Fahrenheit (16 Celsius) and 75 degrees Fahrenheit (24 Celsius).

The Glowforge Pro is boosted by a solid-state thermoelectric cooler that allows for heavier use at higher ambient temperatures. It is designed to be used when the temperature next to your Glowforge is between 60 degrees Fahrenheit (16 Celsius) and 81 degrees Fahrenheit (27 Celsius).

To check the temperature near your Glowforge printer, put a room thermometer next to the right hand side of the Glowforge where it draws in air from the room.

Troubleshooting Steps

You can try any of these things to improve performance if your Glowforge is pausing often to cool, or when it can't start prints due to being too warm:

  • Double-check that your exhaust is configured as described in the manual using the included exhaust hose connected to the outside with a maximum of two 90 degree bends or to your Compact Filter with a maximum of three 90 degree bends. 
  • Try cleaning your exhaust fan following the instructions here: Clean your Glowforge Exhaust.

  • Examine the bottom-right side of your Glowforge, and ensure that there is no fabric or other flexible material underneath it, like a tablecloth. There are air intake vents in this location, and if they become obstructed, it makes cooling less effective.

  • Try pointing a fan at the right side of your Glowforge. If there is warm air around the intake, this could help it cool off.

  • Power off your Glowforge when you are not using it. When your Glowforge sits idle, the fans are off, so heat can build up

  • Ensure that the sun isn't shining on the lid. This could cause the inside of your Glowforge to heat up.

  • If you are venting outdoors, ensure that extreme temperatures or humidity do not enter the Glowforge unit through the exhaust hose. Disconnect the hose from the outside air when the Glowforge is not in use.

  • Turn your Glowforge off and open the lid for a few minutes before trying again. It’s possible for the air in your Glowforge to heat up, just like a car in the sun on a hot day, opening the lid will help that warm air to escape and your Glowforge to cool down.

  • Just wait. Your print may take a little longer when it’s warm, but your Glowforge will protect itself and make sure it cools enough to prevent any loss of power or damage. It’s clever enough to pick up from exactly where it left off, even if it needs to pause to cool down during the print!

If you find you're still running into trouble after trying the above, please contact our team and we'll be happy to help!

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