Control Board Lab

Electronics Repair for Water & Wastewater Utilities

Municipal plants run some of the oldest control systems in industry — SLC 500s, PLC-5s, and operator interfaces bought before the century turned. When procurement rules make replacements slow and budgets make retrofits rare, repairing the installed unit is the practical path.

✓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

Equipment we repair for water & wastewater

  • ▸SLC 500 / PLC-5 era power supplies & I/O
  • ▸Operator interface terminals
  • ▸VFDs on pumps and blowers (≤25 HP)
  • ▸Panel power supplies

Why it matters here

  • ▸Decades-old hardware with no OEM path
  • ▸Public procurement makes emergency replacements slow
  • ▸SCADA migrations are multi-year projects; repairs are same-week

How mail-in repair works

  1. 1

    Start your repair online

    Buy a flat-price repair or request a free evaluation. Either way you get an RMA number and shipping instructions instantly.

  2. 2

    Ship us the unit

    Pack it well, write the RMA on the box, and ship to our Dallas–Fort Worth lab with any carrier. Packing guides are in your confirmation.

  3. 3

    We diagnose and repair

    Bench diagnosis, board-level repair with quality components, aged capacitors replaced as standard, then full functional testing. Quote-track units get a firm quote for your approval before any work.

  4. 4

    Tested, returned, warrantied

    Your unit ships back with the return speed you chose — covered by a 24-month warranty, with your program and settings preserved.

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