FANUC Repair
FANUC controls run half the CNC machines in America, and the legacy Series 0/16/18/21 hardware is where third-party repair earns its keep — factory parts for those generations are scarce. We repair servo and spindle amplifiers, power supply modules, and A16B/A20B boards.
FANUC repair services
FANUC
Free evaluationFANUC Servo Amplifier Repair
Alarm 8, 12, or a dead amp on a FANUC machine? Free bench evaluation, firm quote before any work — most repairs land between $650 and $1,500.
3–5 business days in lab · Free evaluation →
FANUC
Free evaluationFANUC Spindle Amplifier Repair
Spindle alarms stop the whole machine. Free evaluation and a firm quote — typical spindle amplifier repairs run $750–$1,800.
3–5 business days in lab · Free evaluation →
FANUC
Free evaluationFANUC Power Supply (PSM) Repair
When the PSM faults, every axis stops. Free evaluation; typical repairs $500–$1,200.
3–5 business days in lab · Free evaluation →
FANUC
Free evaluationFANUC Board Repair (A16B / A20B)
A16B / A20B boards from FANUC controls, power units, and I/O — free evaluation, typical repairs $300–$800.
3–5 business days in lab · Free evaluation →
Product families we service
Alpha & Alpha i servo amplifiers
A06B-6079 / 6096 / 6114 — IGBT, bus, and control failures
Beta i amplifiers
A06B-6117 / 6130 series
Spindle amplifiers (SPM)
A06B-6078 / 6088 / 6111 / 6121
Power supply modules (PSM)
A06B-6077 / 6087 / 6110 — the shared single point of failure
A16B / A20B boards
Control power, I/O, memory & interface PCBs
Categories: Servo Drives · CNC Electronics · Power Supplies
FANUC part numbers
Control Board Lab is an independent industrial electronics repair company. We are not affiliated with, endorsed by, or an authorized service center for Allen-Bradley®, Rockwell Automation®, Siemens®, FANUC®, Mitsubishi Electric®, Yaskawa®, ABB®, Schneider Electric®, Pro-face®, Omron®, or any other manufacturer named on this site. All trademarks belong to their respective owners and are used for identification only.
Machine down? Let's get it back up.
Start a repair online in two minutes, or send us the part number for a free technician review.
The Fixed-or-Free Guarantee: if we can't repair it, you don't pay for the repair.
Call (817) 799-7332 · 📱 Text us a photo of your unit · Email repairs@controlboardlab.com