COMBUSTION ENG Repair Services India
Combustion Engineering (now part of ABB and Babcock & Wilcox legacy systems) has been a cornerstone of power generation, process heating, and industrial combustion control since 1950. Their legacy equipment remains critical in Indian thermal power plants, refineries, petrochemical facilities, and large-scale industrial boiler systems. Combustion Eng systems are engineered for extreme reliability in high-temperature, high-pressure environments across India's core industrial sectors.
Combustion Engineering (now part of ABB and Babcock & Wilcox legacy systems) has been a cornerstone of power generation, process heating, and industrial combustion control since 1950. Their legacy equipment remains critical in Indian thermal power plants, refineries, petrochemical facilities, and large-scale industrial boiler systems. Combustion Eng systems are engineered for extreme reliability in high-temperature, high-pressure environments across India's core industrial sectors.
Synchronics specialises in repairing Combustion Engineering legacy controls, flame safeguard systems, combustion management units, and integrated boiler automation modules. Our 30-year track record includes restoring Combustion Eng instrumentation and control electronics in thermal power plants, petroleum refineries, and sugar mills across India. We understand the critical role these systems play in continuous industrial operation and offer rapid turnaround repairs to minimise downtime.
Certified repair partner for Combustion Engineering legacy and modern combustion automation systems across India.
COMBUSTION ENG Product Lines We Repair
Our engineers are trained on the full COMBUSTION ENG product range. Below are the major product families we service.
Flame Safeguard Systems (FSS)
Combustion Eng flame detection and combustion safety modules used in boilers and furnaces. Common issues include UV/IR sensor failures, amplifier card degradation, and relay contact wear affecting burner ignition sequences and safety interlocks.
Combustion Management Controllers
Integrated control units managing fuel-air ratio, burner sequencing, and temperature regulation in industrial boilers. Typical faults include solenoid valve failures, pressure transducer drift, and analogue-to-digital converter errors causing improper combustion control.
Burner Control Modules (BCM)
Dedicated controllers for multi-fuel burner operation (oil, gas, coal) in large industrial furnaces. Common repair needs stem from ignition transformer failures, burner motor overload conditions, and fuel valve solenoid faults.
Boiler Instrumentation & I/O Modules
Signal conditioning and input-output interface cards for pressure, temperature, and level sensing in steam generation systems. Failures typically involve capacitor leakage, strain gauge amplifier drift, and 4-20mA transmitter signal loss.
Power Supply Units (PSU) & UPS Modules
Redundant and fault-tolerant power distribution for critical combustion control circuits. Recurring issues include transformer failure, rectifier bridge degradation, and battery backup depletion in uninterruptible supply modules.
Legacy Analog & Relay Logic Boards
Vintage Combustion Eng control cards using discrete analogue circuitry and electromechanical relays. Repair challenges include NOS (no-longer-manufactured) component sourcing, potentiometer recalibration, and relay contact restoration.
Why Choose Synchronics for COMBUSTION ENG Repairs?
PCB-Level Expertise
We repair down to the component level — not just swap boards. Our engineers identify root causes, replace failed IGBTs, capacitors, processors, and gate drivers on COMBUSTION ENG equipment.
Fast Turnaround
Standard 7–10 working days. Express 3–5 days available for critical breakdowns. Emergency same-day/next-day service for unplanned downtime.
6-Month Warranty
Every repaired unit ships with a 6-month comprehensive warranty on parts and labour. Our repair success rate is over 94% across all brands.
All-India Service
Couriered repairs accepted from any city in India. Doorstep pickup available in Vadodara, Mumbai, Pune, Ahmedabad, Surat, Chennai, and more.
Common COMBUSTION ENG Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in COMBUSTION ENG equipment arriving at our workshop.
- ✓UV/IR flame sensor detecting false flame signals — Combustion Eng flame detector tubes suffer contamination from combustion byproducts, dust, and moisture ingress. UV-sensing elements degrade after 10-15 years, causing nuisance shutdowns and erratic flame detection during startup or load changes.
- ✓Solenoid fuel/ignition valve refuses to energise — Combustion Eng burner control modules drive solenoid coils at 24V DC. Extended operation, thermal cycling, and coil insulation breakdown cause complete or intermittent solenoid failure, preventing fuel admission or ignition spark delivery.
- ✓Burner motor overload tripping on startup — Combustion Eng burner drive motors (often 3-phase) are protected by thermal overload relays. Repeated failed ignition attempts, bearing wear, or soft-start circuit malfunction cause nuisance trips, halting burner operation.
- ✓4-20mA signal loss from pressure or temperature transmitters — Combustion Eng boiler instrumentation relies on 4-20mA loops for safe operation feedback. Wiring damage, transmitter sensor drift, or signal conditioning amplifier failure in the control module cause loss of pressure/temperature feedback.
- ✓Combustion control hunting or oscillation around setpoint — Combustion Eng proportioning controllers regulate fuel-air mix using PID logic. Loop tuning degradation, integral windup, or failed fuel valve response causes hunting behaviour, leading to poor efficiency and excess emissions.
- ✓Backup battery failure in redundant power supply or UPS module — Combustion Eng fault-tolerant systems use sealed lead-acid or NiCd batteries for continuous operation during AC mains loss. Batteries degrade after 5-7 years, losing capacity and causing system shutdown when mains power interrupts.
How We Repair Your COMBUSTION ENG Unit
Receive & Log
Your unit is logged into our tracking system with a unique job number. You receive WhatsApp / email updates at every stage.
Fault Diagnosis
Board-level diagnosis using oscilloscopes, LCR meters, and thermal cameras. Root cause identified before any repair begins.
Component Repair
Faulty ICs, capacitors, MOSFETs, IGBTs, and gate drivers replaced with genuine or equivalent-spec components.
Full-Load Test
Unit tested under rated load with original or equivalent motor. All parameters verified. 6-month warranty issued.
Industries Using COMBUSTION ENG Equipment
We serve plant maintenance teams across all major industries where COMBUSTION ENG automation is deployed.
Frequently Asked Questions — COMBUSTION ENG Repairs
Do you repair Combustion Engineering equipment anywhere in India?+
Yes. Synchronics repairs the full Combustion Engineering product range including flame safeguard systems, burner control modules, combustion management controllers, and boiler instrumentation. We offer PAN India door pickup and delivery from major hubs including Mumbai, Delhi, Pune, Hyderabad, Bangalore, Chennai, Kolkata, and Ahmedabad. All repairs are performed at our ISO 9001 certified facility in Vadodara, Gujarat.
What is the typical repair time for Combustion Eng flame safeguard system failures?+
Simple flame detector sensor replacement or relay card restoration typically takes 3-5 working days. Complex combustion management controller faults requiring circuit board-level diagnostics and component replacement may take 7-10 days. Synchronics prioritises thermal power plant repairs for faster turnaround. We provide real-time status updates and expedited shipping at no extra cost for critical repairs.
Can Synchronics provide spare parts for legacy Combustion Engineering equipment?+
Yes. Synchronics maintains stocks of common replacement modules, solenoid valves, flame detectors, and power supply units for Combustion Eng systems. For obsolete or NOS components, we work with authorised suppliers and perform component-level repairs including potentiometer calibration, relay refurbishment, and capacitor replacement. Contact our parts team for fast quotes on availability.
How does Combustion Eng equipment fail in Indian industrial environments?+
Combustion Eng systems in Indian refineries, power plants, and sugar mills face extreme challenges: high ambient temperatures (40-50°C), dust-laden air, moisture ingress during monsoon, voltage fluctuations, and continuous 24/7 operation. These conditions accelerate capacitor drying, sensor fouling, and relay wear. Synchronics designs repairs with Indian climate resilience in mind, including conformal coating for humidity protection and voltage regulation enhancement.
Does Synchronics offer preventive maintenance for Combustion Engineering systems?+
Synchronics offers condition-based maintenance contracts for critical Combustion Eng installations. Our engineers perform annual sensor calibration, relay contact cleaning, solenoid testing, and thermal imaging to identify degradation before failure. We maintain spare module kits on-site for emergency replacement, ensuring zero unplanned downtime in thermal power plants and refineries.
How do I send my COMBUSTION ENG unit for repair?+
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.
What is the cost of repairing a COMBUSTION ENG drive or PLC?+
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.
What warranty do you provide on COMBUSTION ENG repairs?+
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.
Do you provide a no-fix, no-fee guarantee?+
Yes. If we cannot repair your COMBUSTION ENG 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.
COMBUSTION ENG Repair Catalog
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Don't See Your COMBUSTION ENG Model Listed?
We repair the full range of COMBUSTION ENG industrial electronics — even if the specific model is not yet in our catalog. Send us the unit details and we'll confirm repairability within 24 hours.
Free evaluation • 6-month warranty • PAN India pickup
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Send us your faulty industrial electronics. Our engineers will diagnose it and provide a detailed quote within 24 hours — with no obligation to proceed.
Free Evaluation
No obligation
48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service