What if the touchscreen on my freeze dryer is black?

  1. Make sure the power plug is plugged firmly into the wall and into the back of the unit.
  2. Make sure the switch on the back of the unit is switched to “On.”
  3. Check your electrical outlet for power. Plug something else into the outlet so you can be sure that you are getting power.
  4. If everything checks out, you may need to replace your LED Screen and computer board. This can be done by purchasing the computer board and screen from Harvest Right and by watching the video, “LED Display Screen Replacement"

How to Replace the Screen on a Harvest Right Freeze Dryer

The video provides a comprehensive guide on how to replace the screen on a Harvest Right freeze dryer. The tutorial walks viewers through a detailed 12-step process, emphasizing caution and specific tools needed.

Tools Needed:

  • 1/8 inch Allen wrench
  • 5/64 Allen wrench

Steps:

Step 1: Unplug Power Cord – Disconnect the power cord from the freeze dryer to ensure safety.

Step 2: Caution on Screws – Do not remove the two screws holding a particular panel at this time.

Step 3: Remove Top of Machine – Gently pull the top of the machine backward to remove it.

Step 4: Remove Power Switch and Receptacle Panel – Use a 1/8 inch Allen wrench to remove this panel.

Step 5: Remove Right Side Panel – Remove a specific screw to take off the right side panel.

Step 6: Remove Relay Board – Use a 5/64 Allen wrench to remove the screws and the relay board.

Step 7: Disconnect Grounding Wires and Gray Ribbon Cable – Carefully disconnect these components.

Step 8: Slide Old Relay Board – Slide the old relay board to the center of the machine.

Step 9: CPU Change – To change the CPU, remove the gray ribbon cable.

Step 10: Unlock Display Ribbon and Remove Side Mounting Screw – Unlock the display ribbon and remove a side mounting screw using a 5/64 Allen wrench.

Step 11: Remove Brass Bolts from Display Corners – Remove four brass bolts holding the display.

Step 12: Reassemble – Push the display inward, remove the bezel, install the new display, and reassemble everything in reverse order.

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