How to Fix Burned Hotbed Connector on Anet A8 3D Printer

The Anet A8 is one of the most popular desktop 3D printers. It’s cost effective and prints very stable. But sometimes, unexpected defect may happen. Here in this article, we’ll focus on how to fix burned hotbed connector on Anet A8 3D printer.

The popular Anet A8 3D printer

Instruction about A8 3D printer hotbed connector

The Anet A8 3D printer hotbed connector is a 6-pin port connector with four colored wires (red, green, blue and black) connects to the soldered pins on the hotbed.

Connection Table

 Connector Pin Note
Red wire +12V Power for hotbed heating
/ +12V Not connected
Green wire/Blue wire Thermistor Thermistor to read hotbed temperature
/ -12V Not connected
Black wire -12V Power for hotbed heating

Possible causes of burned A8 3D printer hotbed connector

 There several factors could result in burned hotbed connector on an Anet A8 3D printer.

  1. Loose and unstable connection between the connector and hotbed pins caused by long time use and vibration.
  2. Pins on the hotbed are not solid soldered or become loose and lead to burning.

Burned hotbed connector on Anet A8 3D printer

Solutions for burned hotbed connector on A8

Solution 1 - Replacing the burned connector

Replace the burned connector with a new one in the below link.

Solution 2 – Solder the wires directly onto the hotbed.

  1. De-solder the connector and then solder the four colored wires onto the hotbed like below.

Hotbed wiring soldered directly onto the hotbed

  2.Apply high temperature silicone (which can withstand 300℃) to secure wire connection onto the hotbed.


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