Confirming a Bad Fuse (Ceramic Fuse)

Overview

The primary function of the fuse is to act as a safety mechanism; it is designed to automatically cut off the power supply to the printer in the event of a sudden surge or short circuit. If you are having trouble powering up your bot after experiencing one of these events (even after power cycling the machine), then you may have a bad fuse. There are a few steps you can take to confirm fuse continuity before ordering a replacement.

Parts and Tools Needed:

• Multimeter
• A replacement 15A ceramic fuse( for GBX/XLT models) or 20A ceramic fuse (for TBX)

Note: A 15A Fuse is available for purchase here and the 20A Fuse is available for purchase here from our trusted supplier or you may contact our sales team for an order. We strongly recommend purchasing a replacement fuse directly from re:3D or from our trusted supplier. This specific fuse has been thoroughly tested to ensure optimal compatibility with our machines. We have not tested other fuses of another brand, and we cannot guarantee that they will not cause any issues with your printer.

Steps for Confirming Fuse Continuity:

1. Power off your bot and open your electrical box. Locate your fuse box utilizing Diagram (A) below. For both Archimajor board models, it will be located directly next to the heated bed relay. For the Azteeg board models, it will be a standalone fuse box without a heated bed relay directly next to it.

Diagram (A)

Archimajor Board (Terabot)	Archimajor Board (Newer models of GBX/GBX- XLT)	Azteeg Board (Older models of  GBX/ GBX-XLT; discontinued use after GB3+ and GB4 )

2. Take notice that there is one end of the fuse box that has a notch for you to grab onto. Gently lift up the notch and pop open the fuse box. The fuse itself will be resting within that lid of the fuse box. Diagram (B)

Diagram (B)

Archimajor Board (Terabot)	Archimajor Board (Newer models of GBX/GBX- XLT)	Azteeg Board (Older models of  GBX/ GBX-XLT; discontinued use after GB3+ and GB4 )

3. Remove the fuse, set the multimeter to the continuity setting, and place the ends of each probe on each end of the fuse. A good fuse will show continuity (Image on the left), while a blown fuse will not(Image on the right). If there is no continuity between both points, then the fuse is bad and will need to be replaced. 

                         

Questions or concerns? Reach out to our support team at [e-mail] to open a support ticket.