Creality BL Touch - Appendix 2: Troubleshooting; LED Indicator Issues; Probe Deployment Failures; Z-Axis Movement Problems

Appendix 2:
No. Frequently Asked Questions Resolution
1
2
3
4
5
6
7
8
9
10
Red LED(Red Led Duty 100%)is on, but I can’ t see
the Blue LED.
BLTouch is working, but the Red Led flashes at
Duty 80%.
The Blue LED lights up without Alarm (Red Led
Duty 50%), But it doesn’ t deploy and stow.
BLTouch is works, but as soon as the 3D printer is
powered on, the Red LED flashes three times and
stabilizing.
About Alarm (Red Led Duty 50%).
Probe bent or broken.
Bltouch probe retracts automatically.
The probe pops out, but the Z axis does not move.
There is no self-check during Auto home, and the
red light is always flashing.
BLTouch failure, the probe stretches out and triggers
the limit soon, but it rises and does not fall.
A Signal line(orange) is unconnected. Please
check the Orange one.
1).Message indicating poor wiring on the power line
(red). Please check the wiring status. You may need
to repair or reinstall the cable;
2).It’ s doesn’ t affect the output that you’ re
working on, but solve the problem as soon as
possible;
3).You can release to s60 or s160.
A signal line is connected, but your control board is
not generating a normal signal. Please check the
control board firmware.
The BLTouch is set to 5V logic mode.Please
change to OD mode, the OD mode works safety
and accurately.And more, select the 5V logic mode
if the control board is very rare control board that
only operates in 5V logic mode(but we don’ t
recommend). But it can still work as OD mode, so
you need to check.
CAUTION : The 5V logic mode can damage the
control board operating at 3.3V power.
1).Probe sometimes doesn’ t deploy and stow:A
Signal line(orange) is unconnected. Please check
the Orange one;
2).Probe doesn’ t deploy:Clean the area where the
hexagonal wrench bolt and probe meet each other
with an alcohol cotton and reassemble.
1).Straighten the bent part of the probe or replace
to the new one;
2).Probes are designed to bent and break easily to
prevent damage to the 3D printer.
It will automatically retract before being touched,
because the BLTouch itself is not magnetic enough.
Wiring error, BLTouch black and white wire
Z-position wiring error, swap black and white wires.
1).When printer turning on, the BLTouch is too close
to the hot bed, which affects the probe self-check.
Raise the Z axis then power on and try again;
2).BLTouch itself is bad, self-test failed.
Wiring error, BLTouch black and white wire
Z-position wiring error, please exchange black and
white wires.