Why Does My Genmitsu 3018-PROVer V2 Show a GRBL Alarm After Homing?
Exact model: Genmitsu 3018-PROVer V2
Safety: Remove cutting tools and disconnect both 24 V and USB before moving connectors or servicing axes.
A.
Start with the accessible checks
What this suggests: Record the exact GRBL ALARM number, not merely “Alarm.” An alarm that appears immediately after homing may be a limit that remains engaged after the carriage reaches its switch.
What to do
- Remove cutting tools, power down both USB and 24 V before touching limit wiring, then inspect the homing switch at the end of travel and whether it can spring back.
- Confirm the carriage is not mechanically pressed against the switch and check for crushed leads.
Still not fixed? Continue to the next check.
↑ Back to the repair pathsB.
If the problem remains after the first checks
What to do
- After a safe reset, use GRBL input-state reporting to see whether the input clears when released.
- Adjust switch mounting or travel clearance for a real stuck switch; repair its cable or replace the faulty matching switch.
- Do not indiscriminately copy another machine's $ parameters or disable all limits.
Confirm the repair
Homing completes and the switch returns to an untriggered state after pull-off, without another immediate alarm. A generic ALARM:1 or ALARM:2 requires a different path.