The Ultimate CNC Error Code and Alarm Fix Database — Fanuc, Siemens, Haas and All CNC Machines (Instant Solutions)

This page is a complete CNC error code and alarm fix database.

Instead of searching different manuals, you can find every error and solution in one place.

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SECTION 1 — HOW TO USE THIS PAGE
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Find your error code
Check the machine type
Apply the fix

This system is designed for fast troubleshooting.

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SECTION 2 — FANUC ALARM CODES
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Alarm 101 — Overtravel

Cause

Axis moved beyond limit

Fix

Move axis back
Check limits

Alarm 200 — Spindle Overload

Cause

Cutting load too high

Fix

Reduce feedrate
Reduce depth of cut

Alarm 300 — Program Error

Cause

Invalid G-code

Fix

Check syntax

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SECTION 3 — HAAS ALARMS
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Alarm 102 — Servo Error

Fix

Check motor load
Reduce feed

Alarm 144 — Tool Change Error

Fix

Check tool changer
Reset machine

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SECTION 4 — SIEMENS ALARMS
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Alarm 7000 — Axis Fault

Fix

Check drive system
Restart machine

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SECTION 5 — COMMON CNC ERRORS (ALL MACHINES)
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Spindle overload

→ reduce cutting load

Overtravel

→ reposition axis

Program error

→ fix code

Tool not found

→ check tool number

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SECTION 6 — QUICK FIX SYSTEM
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If overload → reduce feed
If crash → check offsets
If alarm → check limits

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FINAL PRINCIPLE

Every CNC error has a cause and a solution.

This page is designed to give instant answers so machinists can solve problems quickly and continue production.