Yaskawa · V1000
CIMR-VU4A0011FAA Repair
Yaskawa V1000 compact VFD, 480V class (CIMR-VU4A0011FAA). Free evaluation and firm quote — IGBT and bus-capacitor repairs are routine on this family.
Known failures on the CIMR-VU4A0011FAA
- ▸oC overcurrent faults
- ▸Uv1 undervoltage
- ▸Dead drive
- ▸Cooling-fan 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.
Check these before you ship
Some of these will tell you the CIMR-VU4A0011FAA is fine and the fault is elsewhere — worth ten minutes before you pay to ship it.
- □Test the motor and motor cable first. An insulation fault downstream is the most common reason a drive fails again shortly after being replaced.
- □Write down the exact fault code and whether it trips on power-up, on start, during acceleration, or only under load once warm — each points somewhere different.
- □Check the heatsink and fan. Overtemperature faults on a dust-packed drive in a hot panel are often a cleaning job, not a repair job.
- □Confirm all three input phases are present and balanced. Input phase loss both causes drive faults and shortens bus capacitor life.
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.
Why a CIMR-VU4A0011FAA fails — and what we do about it
The V1000 shares its electronics across the family, so these are the faults we see on this part number again and again.
Output stage failure
- What you see
- Overcurrent or ground-fault trips, or a drive that faults immediately on start.
- Why it happens
- Output power device failure, usually precipitated by motor or cable insulation breakdown downstream of the drive.
- What we do
- The output stage is tested cold and repaired, gate drive verified, and drive output proven under run test.
Bus capacitor aging
- What you see
- Undervoltage or bus faults, or trips only under acceleration or load.
- Why it happens
- Electrolytic capacitor degradation with service hours and temperature, accelerated in hot panels and by long unpowered storage.
- What we do
- Bus capacitors are assessed and replaced and stability verified under load.
Repair or replace a CIMR-VU4A0011FAA?
Drives sit in the middle of the repair-versus-replace decision, and we will tell you when replacement is the better call. Repair wins decisively when the drive is obsolete, when it is one of many identical units you intend to keep as a maintainable fleet, or when a replacement means re-engineering mounting, wiring or parameters. A current-generation general-purpose drive in a small frame size can be cheap enough new that repair is not worth it — and if that is your situation, we would rather say so during the free evaluation than sell you a repair.
Full technical detail for this repair
The VFD Repair (ABB, Yaskawa, Danfoss & More) service page covers the complete bench sequence — how the unit is tested, what gets replaced and how it is proven before it ships back — along with the rest of the family we service.
VFD Repair (ABB, Yaskawa, Danfoss & More) — full details →Frequently asked questions
Can the CIMR-VU4A0011FAA be repaired?
Yes — oc overcurrent faults, uv1 undervoltage, dead drive are the failures we commonly repair on the V1000 platform. It starts with a free bench evaluation and a firm quote you approve before any work — $0 if unrepairable.
How long does a CIMR-VU4A0011FAA 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