CNC Machine Repair
Fanuc CNC Machine Repair & Service
Fanuc is primarily a controls vendor — your machine is built by Doosan, Haas, or another OEM and runs a Fanuc control. We service the full Fanuc family from deep-legacy Series 0 through current 0i-F and 30i-B. Find your control below, or browse by service type.
Brands that ship Fanuc controls
Fanuc is primarily a controls vendor — your machine is built by one of these OEMs and runs a Fanuc control. Pick the brand for series-specific notes, or pick a Fanuc generation below.
Browse by Control Generation
Fanuc spans six control generations from the early 1980s through current production. Pick yours for common faults and parts notes.
- Series 0 / 0M / 0T (Pre-i Legacy) — 1980s-1990s. Bubble memory, CRT failure, keyboard, MDI board, drive obsolescence.
- Series 6 / 10 / 11 / 12 / 15 — 1980s-2000s. Similar pattern to Series 0; Series 15 still in active service on larger machines.
- Series 16i / 18i / 21i — 1995-2010. PCMCIA media obsolescence, FROM/SRAM battery, drive amp, monitor.
- Series 0i (A/B/C/D/F) — 2003-present. The ubiquitous Fanuc — HDD/CF card, battery, drive faults, panel buttons.
- Series 30i / 31i / 32i / 35i — 2008-present. Less hardware failure; mostly networking, MTConnect, FOCAS integration.
- Power Mate i — Dedicated-axis / servo positioner. Drive amp, encoder, parameter loss.
Browse by Service
What brings Fanuc machines in for repair
Most Fanuc service splits between three patterns. Deep-legacy Series 0, 6, 10, 11, 12, and 15 — board-level work through remanufacturing specialists, bubble memory recovery on the oldest builds. Mid-life Series 16i/18i/21i — PCMCIA media migration, FROM/SRAM battery, drive amplifier, and monitor work. Current Series 0i and 30i — HDD/CF card, battery, networking, MTConnect, and FOCAS integration. The diagnostic lens is the generation, not the machine.
How we approach Fanuc repair work
Fanuc service starts with confirming the generation. From there it's a fork: legacy generations (Series 0 through Series 15) go through board-level repair or remanufacturing specialists; mid-life 16i/18i/21i is parts availability and media migration; current 0i and 30i is mostly software, networking, and configuration. The control spokes below cover each generation in detail.
Lead Time & Process
Lead time on machine repair depends on what's wrong — diagnostic is fast, but parts and rebuild time vary by the job. Our three-step workflow keeps it transparent:
- Contact us. Call 319-610-4341 or use the quote form. Tell us the machine, the symptoms, and how urgent it is.
- Review & quote. We confirm the model and control generation, scope the work, and send back a price and realistic lead time within one business day on most inquiries.
- Approve & rebuild. We complete the repair, verify it back to spec, and return the machine ready to run.
Why Shops Trust Us
Experienced field technicians with hands-on time across the major CNC OEM platforms, in-house precision spindle balancing capability, laser alignment services, and established relationships with aftermarket bearing and spindle component suppliers.
"Honestly, we thought the machine was done for." Most customers tell us they're relieved to avoid replacement lead times and six-figure capital expenses.
Frequently Asked Questions
Why is the Fanuc page structured differently?
Fanuc is primarily a controls vendor — the machine your control sits in is built by Doosan, Haas, or another OEM. Our Fanuc hub is organized by control generation rather than machine series because that's the right diagnostic lens for Fanuc service work.
Which Fanuc generation do you see most often?
Series 0i (specifically 0i-D and 0i-F) is by far the most common Fanuc generation we see on Midwest shop floors. Series 16i/18i/21i is the second-most-common — many late-1990s through 2000s machines still in production. Series 30i is growing as those builds age into routine service. Series 0 and Series 6-15 are deep legacy.
Do you do board-level Fanuc repair?
Yes. Fanuc service is often board-level — drive amplifiers, MDI boards, MOCON-style motion-control boards. We work through remanufacturing specialists on boards that have gone out of OEM supply, and through Fanuc channels for current-generation parts.
Can you migrate a 16i/18i/21i from PCMCIA media?
Yes. PCMCIA-to-CF or PCMCIA-to-USB media migration is a routine job on 16i/18i/21i machines where the physical reader is unreliable or the media is no longer sourcing reliably. We do the migration alongside any other service work on the control.
How long does Fanuc service take?
Lead time depends on the generation. Current 0i-F and 30i parts are fully supported, so service is fast. 16i/18i/21i depends on Fanuc parts availability — most are still serviceable but the supply chain is thinning. Series 0 and Series 6-15 work runs through remanufacturing specialists and the timeline tracks their inventory.
Do you service Fanuc-controlled machines outside Iowa?
Yes. We service shops across Iowa, Illinois, Wisconsin, Minnesota, Nebraska, Missouri, and Texas. For board-level Fanuc work, ship-in to our Waterloo facility is usually the right path.