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Siemens PLC Repair Services

(877) 536-0090

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Qualitrol International repairs all models of Siemens Simatic S7 PLC – S7-200, S7-300, S7-400 – and the entire S5 family, in addition to the Siemens 505 PLC, Siemens 405 PLC and Siemens 305 PLC. Our IPC 7711 certified repair technicians have over 50 combined years in PLC and electronics repairs.

Because we have so much repair experience and knowledge of Siemens and other PLC parts and their operation, we provide the most thorough and professional repairs. Each part is tested under real-world conditions to insure that your repaired Siemens Simatic PLC part works when you need it.

We warranty the entire Siemens PLC board for one year, not just the part that we repaired. So you can rest assured that your Simatic PLC repair from Qualitrol will work the first time.

Please fill out the Repair Request Form, call us on our Repair Hot-Line at (877) 536-0090 or email us at

  • Repair turnaround time is days, not weeks. Expedited service available.
  • Our repair technicians have over 50 combined years of experience with PLC and other electronic parts.
  • To ensure quality and reliability, we offer extensive testing to manufacturers' specifications on all Siemens PLC parts.
  • Fill out the REPAIR REQUEST form which will generate a packing document to ship with your parts.

Siemens PLC

Simatic S7-300

Simatic S7-400

Simatic S5-135U/155U

Simatic 305

Simatic S5-95U/100U

Simatic S5-115U

Simatic 405

Simatic 505