When to Replace the Hot Bed Wire:

1. Damage or Breakage: The hotbed wire is ruptured, crushed, or broken during use, or has aged and become damaged.
2. Abnormal Hot Bed Temperature: The hot bed temperature fluctuates significantly (temperature jumps > 5 ℃), shows 0 ℃, or other anomalies, possibly due to long-term aging leading to poor contact between the internal power cord or thermal wire of the hotbed wire.

Disassembly:

1. Turn off the device power.
2. Pull down the cover plate on the base and disconnect the two Z-axis motor terminals.

3. Use a 2.5mm wrench to unscrew the 4-foot pad fixing bolts and 5 bottom shell fixing bolts.

4. Use a cross screwdriver to unscrew the hot bed power cord, unplug the thermal wire terminal, and use a No. 2 wrench to unscrew the bottom line fixing bolt of the hotbed wire.

 

5. Remove the PEI board and use a 2.5mm wrench to unscrew the hotbed fixing bolts.

6. Use a No. 2 wrench to unscrew the hotbed wire fixing bolt and remove the hotbed wire protection shell.

7. Pull out the wire terminal.

8. Use the No. 2 wrench to unscrew the hotbed wire fixing bolt on the base and pull out the hotbed wire.

Installation:

1. Insert the hotbed wire male terminal into the female terminal of the hotbed and cover the hotbed wire protective shell.

 

2. Use a No. 2 wrench to lock the hotbed wire fixing bolt.

3. Use a 2.5mm wrench to lock the hotbed board fixing bolts.
4. Install the PEI board.
5. Thread the fixed end of the hotbed wire main board into the base and use the No. 2 wrench to lock the hotbed fixing bolt on the base.
6. Use a cross-screwdriver to tighten the hot bed power cord and connect the wire's main board terminals.
7. Use a No. 2 wrench to tighten the bottom line fixing screws of the hotbed wire.
8. Cover the base shell and tighten the 4-foot pad fixing bolts and 5-bottom shell fixing bolts with a 2.5mm wrench.
9. Insert the two Z-axis motor terminals and cover the plate on the base.
10. Turn on the power, perform automatic leveling, and start a new print job.

If the above problems cannot be solved, please get in touch with us at us.