Repair panels HMI
Siemens SIMATIC
KTP700 Basic · KTP1200 Basic · TP700 Comfort · TP1200 Comfort · MP377 · MP277
A black screen or dead touch on Siemens SIMATIC panels means the operator cannot control the machines. We repair display matrices, touchscreens and main boards of all SIMATIC HMI series. WinCC project remains intact. 12-month warranty.
Diagnostics included in repair
No-obligation quote
12-month warranty
Courier pickup from all of Europe
WinCC project intact
Siemens SIMATIC HMI service — Basic, Comfort, Outdoor and Mobile Panel
KTP700 / KTP1200 Basic
Repair of KTP700 Basic (7") and KTP1200 Basic (12") panels. Replacement of TFT display matrix, PCAP touchscreen, LED backlight and main board.
TP700 / TP1200 Comfort
Repair of TP700 Comfort (7") and TP1200 Comfort (12") panels. Service of widescreen TFT display matrix, PCAP touchscreen and ARM processor board.
MP377 / MP277
Repair of Multi Panel MP377 (15") and MP277 (10") panels. Replacement of SVGA display matrix, resistive touchscreen and CCFL → LED converter.
KTP400 / TP400 Basic
Repair of smaller KTP400 Basic (4") and TP400 Basic panels. Service of touchscreen, backlight and communication ports.
TP177 / OP177 (EOL)
Repair of discontinued TP177B, OP177B, TP270, OP270 panels. Regeneration of older display matrices and touchscreens for lines without manufacturer support.
KP700 / OP panels
Repair of KP700 Comfort key panels, service of membrane function keypads and regeneration of key films.
Repair Siemens HMI: faster and cheaper than buying a new SIMATIC panel
- 30–70% savings — repairing Siemens panels costs a fraction of a new KTP700/TP1200, especially for older models.
- WinCC project intact — we repair the panel hardware without interfering with the HMI project and network configuration. No need to reload the project.
- Faster than a new panel — repair: 5–7 business days (after receiving necessary components), delivery of a new Siemens panel: often several weeks. As a rule — time may be extended depending on component availability and repair complexity; deadlines agreed individually.
- EOL service (MP277, TP177) — we repair discontinued models for which Siemens no longer produces replacements.
- Precise diagnostics — we identify the specific component (display matrix, touch, backlight, board) and replace only what is damaged.
- 12-month warranty — on every repair performed, without exceptions.
Request
online or by phone
Shipping
by courier
Diagnostics
included in repair
Quote
no obligation
Repair
& testing
Return
with warranty
Report Siemens HMI panel fault — no-obligation quote
Provide the Siemens panel model and fault description (black screen, touch not working, streaks). An EFIXLAB specialist will respond with a diagnosis.
Dziękujemy! We received your request — our Siemens HMI specialist will contact you shortly.Frequently asked questions
Yes — LCD/TFT display matrix replacement is one of the most common repairs for Siemens panels. We order the appropriate display matrix (original or replacement), replace it and perform calibration. The HMI project remains intact.
Yes — we repair the panel hardware without interfering with the WinCC Flexible or TIA Portal project. If the panel's Flash memory is damaged, we inform you before repair.
Yes — we specialize in older SIMATIC models: MP277, MP370, TP177B, OP177B, TP270, OP270. We have components for regenerating these panels or compatible replacement display matrices and touchscreens.
Most commonly it is a fault of the touchscreen itself (resistive layer or PCAP). Diagnostics confirms the specific component. Touchscreen replacement is significantly cheaper than a new panel.
The price depends on the model and type of fault. Diagnostics is paid — the cost is included in the repair price. Approximate estimates: backlight or touch repair is approx. 30–50% of the price of a new panel, display matrix replacement is approx. 40–60%. Exact quote after diagnostics.
Repair Siemens HMI by model
Repair KTP700 Basic
7" touch panel SIMATIC Basic
Repair KTP1200 Basic
12" touch panel SIMATIC Basic
Repair TP700 Comfort
7" panel Siemens Comfort Series
Repair TP1200 Comfort
12" panel Siemens Comfort Series
Repair Siemens PLC
S7-1200, S7-1500, S7-300, S7-400
Repair HMI — all brands
Allen-Bradley, Mitsubishi GOT, Weintek
Siemens HMI Panel Repair — SIMATIC Comfort, Basic, and TP/KTP Series
Siemens SIMATIC HMI panels — Comfort Panels (TP700, TP900, TP1200, TP1500, TP1900, TP2200), Basic Panels (KTP400, KTP700, KTP900, KTP1200), and legacy panels (OP/TP 170, 270, 370, MP277, MP377) — are the most widely installed operator panels in European industry. Integrated with TIA Portal engineering and S7 PLC communication, these panels provide process visualization, alarm handling, recipe management, and trend display for virtually every type of industrial process.
Common Siemens HMI failures include LCD display degradation (especially in older CCFL-backlit models), LED backlight driver failures, touchscreen malfunctions (resistive film wear, capacitive sensor defects), mainboard component failures (processor, memory, power regulation), CompactFlash/SD card corruption, and PROFINET/MPI communication interface damage. Comfort Panels may develop PROFINET switch port failures, while legacy TP170/OP270 panels face increasingly critical backlight and display aging.
EFIXLAB provides comprehensive Siemens HMI repair for all panel generations. Our service covers display replacement and backlight conversion (CCFL to LED for longer life), touchscreen digitizer replacement and calibration, mainboard component-level repair, storage media recovery and cloning, PROFINET interface repair, and power supply section restoration. We test every panel with S7 PLC communication simulation and verify touch accuracy across the full display area.
Siemens HMI repair typically saves 35–60% versus new panel purchase. For legacy panels that Siemens has discontinued, repair avoids costly WinCC project migration and hardware redesign. CCFL-to-LED backlight upgrades extend display life well beyond original specifications. All Siemens HMI repairs include extended burn-in testing and our 12-month warranty.