Control Board Lab

Multi-brand · Mail-in from Charlotte

PLC Power Supply Repair in Charlotte

Component-level repair for PLC rack power supplies: Allen-Bradley SLC 500 and ControlLogix series, Siemens S7 PS units, and similar. Rectifiers, capacitors, and fans are the classic failures. Flat $349 with full load testing.

Typical ground transit from Charlotte: ~3 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 Charlotte

Charlotte is built on energy and turbine equipment manufacturing, automotive and motorsport engineering, textiles and metal fabrication. That mix decides which controls end up on our bench: energy equipment, automotive, textiles and metal fabrication all depend on operator terminals, drives and power supplies that reach end of life long before the machines they run.

With roughly 3 business days of ground transit each way and 3–5 business days on the bench, most Charlotte 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 Charlotte 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

  • Dead rack / no output
  • Rack faults when warm
  • Output sag under load
  • Audible whine or burnt smell
  • Intermittent brownouts and processor faults

Flat price — parts & labor included

$349

Fixed-or-Free Guarantee: if we can't repair it, the repair price is refunded.

  • 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.

PLC Power Supply Repair in Charlotte — common questions

My machine in North Carolina is down right now — what's the fastest path?

Overnight the unit to our lab with rush or emergency service selected and it goes to the front of the bench the day it arrives. From North Carolina, overnight shipping plus a 1–2 day rush bench typically beats any replacement lead time by weeks.

Can North Carolina plants set up a commercial account?

Yes — maintenance teams and integrators in North Carolina can open a commercial account for PO acceptance, priority queue, and repair history by serial. It's the same published pricing, with less friction on every subsequent repair.

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.

Other North Carolina metros

Power Supplies 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