Control Board Lab

Multi-brand · Mail-in from Nashville

PLC Power Supply Repair in Nashville

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 Nashville: ~2 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 Nashville

Nashville is built on automotive assembly and supply, appliance manufacturing, plastics and food processing across middle Tennessee. That mix decides which controls end up on our bench: automotive, appliance, plastics and food processing all depend on operator terminals, drives and power supplies that reach end of life long before the machines they run.

With roughly 2 business days of ground transit each way and 3–5 business days on the bench, most Nashville 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 Nashville 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 Nashville — common questions

How long does shipping take from Tennessee?

Ground transit from Tennessee to our Dallas–Fort Worth lab typically runs 2 business days each way. With 3–5 business days on the bench, most Tennessee 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 Tennessee, or do I need a local shop?

We repair units from Tennessee 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.

Who pays shipping from Tennessee?

You ship the unit to us with any carrier at your cost (insure it — packing guide provided), and return shipping is selected at checkout: $24.95 ground, $59.95 2-day, or $109.95 overnight, flat nationwide.

Other Tennessee 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