It sounds like your shelving unit got too hot during your last batch and tripped the overload switch on the back of the shelving unit. The overload switch (also referred to as a snap-disk) is a safety device that can trip and cut off power to the heating element if the internal temperatures exceed a certain limit.
To check and reset the snap disk, please follow these steps:
- Turn off the freeze dryer and unplug it from the power source.
- Locate the snap disk, which is a small round device with a button on top, usually located near the heating element or on the back of the shelving unit. You may need to remove the cover by unscrewing four screws in each corner of the back plate.
- Press the button on top of the snap disk firmly to reset it. Reattach the shelf cover and plug it back into your machine.
- Plug the freeze dryer back in and turn it on.
- Monitor the unit to see if the heat is now functioning properly.
If resetting the snap disk does not resolve the issue and there is still no heat or it continues to trip, it's recommended to reach out to our Customer Support team to further assist you with this issue.
