Multi-brand · Mail-in from San Antonio
VFD Repair (ABB, Yaskawa, Danfoss & More) in San Antonio
Component-level repair for AC drives up to 25 HP across major brands: ABB ACS series, Yaskawa V1000/A1000, Danfoss VLT, Mitsubishi FR, Eaton, Fuji, Hitachi, Delta. Free evaluation, typical repairs $300–$900.
Typical ground transit from San Antonio: ~1 business days each way

✓Fixed — or it's free
Unrepairable units are refunded; evaluations cost $0
✓24-month warranty
Every repair covered, parts and labor
✓3–5 business days bench time
Rush (1–2 day) and emergency service available
✓Program preserved
Your application and settings stay in the unit
What we see from San Antonio
San Antonio is built on automotive assembly, food processing, aerospace maintenance and refining. That mix decides which controls end up on our bench: automotive, food processing, aerospace and refining all depend on operator terminals, drives and power supplies that reach end of life long before the machines they run.
With roughly 1 business day of ground transit each way and 3–5 business days on the bench, most San Antonio customers are back in production well inside the lead time quoted on a replacement unit. When a line is down, overnight shipping plus rush service compresses that further.
We are not a local depot in San Antonio and do not pretend to be — this is a mail-in service run from a single bench lab in Arlington, Texas. What that buys you is a technician who repairs these units every day rather than one who sees one occasionally, and the same 24-month warranty wherever you ship from.
Symptoms we fix
- ✓Overcurrent / ground fault trips
- ✓Dead drive
- ✓DC bus faults
- ✓Display/keypad failures
- ✓Fan failures and overtemp trips
Free evaluation — firm quote first
Free evaluation
Fixed-or-Free Guarantee: $0 if it can't be repaired.
- ✓ 3–5 business days in lab
- ✓ 24-month warranty
- ✓ Program & settings preserved
Ship your unit to
USPS
Control Board Lab
PO Box 120241
Arlington, TX 76012
UPS / FedEx
Control Board Lab
1009 Oakwood Ln # 120241
Arlington, TX 76012
Write your RMA number on the outside of the box and include it on a note inside. Units over 50 lb (large VFDs, spindle drives, industrial PCs in enclosures) ship by freight — contact us before ordering and we will arrange dock-to-dock shipping.
Part numbers we repair for San Antonio customers
VFD Repair (ABB, Yaskawa, Danfoss & More) in San Antonio — common questions
Is my program safe shipping it out of state?
Yes. Applications and parameters live in the unit's protected memory, which our physical repairs never touch — and units are logged, photographed, and tracked by RMA from arrival to return shipment.
How long does shipping take from Texas?
Ground transit from Texas to our Dallas–Fort Worth lab typically runs 1 business days each way. With 3–5 business days on the bench, most Texas customers have their repaired unit back inside two weeks — and overnight shipping plus rush service compresses that to days when a machine is down.
Do you really serve Texas, or do I need a local shop?
We repair units from Texas plants every bit as easily as local ones — mail-in is the whole model. You get the same published pricing, the same 24-month warranty, and bench photos/documentation with the work. Most "local" industrial repair quotes end up shipping your unit somewhere anyway; ours just says so up front.
Other Texas metros
VFDs / AC Drives repair in other states
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