Pro-face Repair
Schneider Electric
Pro-face GP and AGP touchscreens run machines for decades until the CCFL backlight or digitizer wears out — both clean bench repairs with your project preserved.
Independent repair — not Pro-face-affiliated
Pro-face repair services
Product families we service
GP2000 series
GP2500/GP2600 — backlight and touch repairs
AGP3000 series
The workhorse AGP3300–3600 line
GP377 / GP37W2
Legacy units, CCFL lamp replacement
Categories: HMI / Touchscreens
What fails on Pro-face hardware
Across the Pro-face equipment that reaches our bench, a handful of faults account for most of it. Electronics age in fairly predictable ways, which is exactly why board-level repair works.
Pro-face HMI Repair
Backlight failure
What you see: Dark screen, with the application faintly visible if you shine a light at it.
Why: The backlight and the circuit driving it wear out with running hours. Because these terminals often run continuously for years, backlight failure is one of the most common faults we see on them.
Before you ship a Pro-face unit
- □Confirm the supply feeding the terminal is actually delivering its rated voltage under load — a failing panel supply mimics a dead HMI exactly.
- □Shine a bright light at an angle across a dark screen. If you can make out the application faintly, the LCD is alive and you have a backlight fault, which is a cheaper and faster repair.
- □If the unit boots but the touch is wrong only in one region, note where. Localized dead zones point at digitizer wear; whole-screen drift more often points at the controller.
- □Note the exact text of any boot or fatal error. The code narrows the fault far faster than "it will not start".
- □Back up your runtime application if you have a copy — we preserve what is on the unit, but a backup is cheap insurance on any repair.
Repair or replace?
Operator terminals are the clearest repair-over-replace case in a plant. Much of the installed base is discontinued with no drop-in successor, so replacing means specifying new hardware, re-developing or converting the application, re-testing it against live machinery, and retraining operators on a screen that behaves differently. The repaired terminal drops back into the same panel cutout running the same application. Even where a successor exists, the migration engineering usually costs several times the repair.
Pro-face part numbers
Control Board Lab is an independent industrial electronics repair company. We are not affiliated with, endorsed by, or an authorized service center for Allen-Bradley®, Rockwell Automation®, Siemens®, FANUC®, Mitsubishi Electric®, Yaskawa®, ABB®, Schneider Electric®, Pro-face®, Omron®, or any other manufacturer named on this site. All trademarks belong to their respective owners and are used for identification only.
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