Touch Probe Troubleshooting (BB Controller)

This test is for the BB controller version. It does not apply to elite machines.

Let’s test for voltage at the end of the probe wires. With a multimeter you should be able to read from 3.2 to 5.4 Volts DC with the Magnet being DC- and the touch plate being DC+. If that is not present, then the wiring has a break somewhere and needs to be replaced.

Purchase replacement probe wires here: