ABB · ACS550
ACS550-01-012A-4 Repair
ABB ACS550 VFD, 7.5 HP / 480V (ACS550-01-012A-4). IGBT, rectifier, and bus-capacitor failures repaired — free evaluation, firm quote.
Known failures on the ACS550-01-012A-4
- ▸Overcurrent / ground fault trips
- ▸Dead drive
- ▸DC bus faults
- ▸Panel/keypad failures
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.
Not your exact model?
Search the catalog or send us the number on your unit's label — we service far more than the catalog shows.
Frequently asked questions
Can the ACS550-01-012A-4 be repaired?
Yes — overcurrent / ground fault trips, dead drive, dc bus faults are the failures we commonly repair on the ACS550 platform. It starts with a free bench evaluation and a firm quote you approve before any work — $0 if unrepairable.
How long does a ACS550-01-012A-4 repair take?
Standard bench time is 3–5 business days once the unit arrives. Rush service (+$149) moves it to 1–2 business days, and emergency same/next-day attempts are available — contact us first.
How do I send it in?
Start the repair online to get an RMA number instantly, pack the unit well with the RMA on the box, and ship it to our Dallas–Fort Worth lab with any carrier. Full packing guidance is on the mail-in instructions page.
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