GENERAL RAILWAY Repair Services India

Yes. Synchronics repairs the complete General Railway product range—TPCU, APS, STCM, RBM, PVR, and FDLS systems. We offer nationwide PAN-India door pickup from all major railway hubs: Delhi, Mumbai, Pune, Bangalore, Hyderabad, Chennai, Kolkata, and Ahmedabad. All repairs are performed at our fully equipped 180+ engineer facility in Vadodara, Gujarat, with turnaround times optimized for Indian railway maintenance schedules.

Synchronics has extensive hands-on experience with General Railway auxiliary power and regenerative braking systems deployed in Delhi Metro, Mumbai CRIS, and Bangalore Metro rolling stock. We understand metro-specific duty cycles (frequent acceleration/braking, rapid thermal cycling), monsoon environmental challenges, and strict metro operational availability requirements. Our engineers hold metro-specific equipment certifications and deliver repairs with full traceability documentation required by metro operating authorities.

Absolutely. Intermittent ATP faults in General Railway STCM modules are typically caused by safety relay contact stiction or oxidation—a known failure mode in India's vibration-heavy rail environments. Synchronics will bench-test all relays using certified relay test equipment, replace any with measured contact resistance >100mΩ, and verify logic integrity using the full STCM functional safety test suite. We provide complete IEC 61508 compliance documentation and confidence that the repaired module will perform reliably in service.

Reduced traction output with elevated thermal signature in a General Railway TPCU often points to thyristor or IGBT module solder fatigue or heatsink contamination. Other causes include filter capacitor aging in the control power supply circuit reducing gate drive voltage, or transformer core saturation from accumulated DC bias. Synchronics performs thermal imaging, conducts insulation resistance testing, measures leakage currents, and replaces failed power semiconductors with full thermal qualification. We deliver a TPCU operating at nameplate performance and confirmed thermal margins.

Standard FDLS diagnostics and repair turnaround is 5-7 working days from receipt, depending on fault severity and parts availability. If data recovery from flash memory is required, allow 7-10 days. We perform data extraction, firmware reload, and full functional validation including Ethernet interface testing before shipping. For Indian railway depots requiring faster turnaround, we maintain stocked exchange units; contact our service desk to discuss swap-out options.

Pack the unit securely and courier it to our Vadodara workshop. Include a note with the fault description and your contact details. We will log it into our system and WhatsApp you a job number within 24 hours of receipt. Doorstep pickup is available in Vadodara, Ahmedabad, Surat, Mumbai, and Pune.

Repair cost depends on the model and the fault. We offer a free diagnosis — once we identify the fault, we provide a fixed quotation before proceeding. Typical repairs cost 20–40% of the new unit price. We will never repair without your approval.

All repaired units carry a 6-month comprehensive warranty covering the same fault and related issues. If the fault recurs within the warranty period, we repair it free of cost.

Yes. If we cannot repair your GENERAL RAILWAY unit after diagnosis, you pay only the diagnosis fee (₹500–₹1,500 depending on the product). The unit is returned to you at no additional charge.