OUR SERVICES
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Our area of expertise are steel, aluminium, copper & packaging industry.
Services That We Provide
Lower production cost
Energy Saving
Increase Productivity
- Lower production cost
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- Energy Saving
- Lower production cost
- High Efficiency
- Energy Saving
Industrial furnaces are critical to manufacturing, metal processing, heat treatment, and other high-temperature applications. When a furnace malfunctions, it can lead to costly downtime, re duced efficiency, and even safety hazards. That’s why professional industrial furnace repair
services are essential to maintaining peak performance and extending equipment lifespan.
Our technicians diagnose and repair furnaces issue and asses case by case. Among the common problems we fix are:
Heating element failures
Burnt-out or damaged elements leading to uneven heating
Temperature control issues
Burnt-out or damaged elements leading to uneven heating
Refractory damage
Burnt-out or damaged elements leading to uneven heating
Gas or combustion problems
Improper burner operation, flame failure, or gas leaks
Electrical malfunctions
Wiring issues, relay failures, or power supply problems
Mechanical wear & tear
Damaged belts, fans, or conveyor systems
Atmosphere control failures
Problems with inert gas or vacuum systems
Common Furnace & Oven Troubleshooting and Repair
Even the most reliable furnace or industrial oven may experience performance issues over time — from electrical furnace faults and furnace/ oven temperature control errors to mechanical wear or combustion instability. Proper troubleshooting and timely repair are critical to maintain efficiency, ensure product quality, and prevent costly downtime.
At Wintherm, our engineers specialize in diagnosing and repairing all types of furnaces and ovens — including vacuum furnace, ashing furnace, drying oven, induction furnace, and electrical systems.
We handle electrical, mechanical, and control system faults to restore optimal operation and extend equipment lifespan.
On-Site or In-House Repair Options
We understand that not every furnace can be easily moved. That’s why we provide flexible service options:
- For large industrial furnaces or ovens, our technicians will have inspection visitand perform repair and troubleshooting at your site.
- For smaller furnaces, such as lab furnaces, benchtop ovens, or compact units, we may request customers to send the equipment to our workshopfor a more thorough and controlled repair process.
Our in-house facility is equipped with the right tools and testing equipment to ensure precise diagnostics and high-quality repair results.
Our Furnace & Oven Service Visit Includes:
- Comprehensive inspectionof heating elements, thermocouples, temperature controllers, and electrical wiring.
- Troubleshooting and diagnosticsfor power failure, temperature inaccuracy, or uneven heating.
- Replacement of faulty partssuch as contactors, relays, blowers, or sensors.
- Preventive maintenanceto improve energy efficiency and prolong equipment lifespan.
- Performance testing and calibrationafter repair to ensure stable operation.
| Common Furnace / Industrial Oven Problem | Possible Cause |
| Furnace/ Industrial Oven not powering up | Blown fuse, faulty contactor, loose wiring |
| Heater not heating | Open-circuit heating element or faulty SSR/relay |
| Uneven heating | One or more heaters not working, loose connections |
| Controller display error / no reading | Broken thermocouple or wrong input type |
| Temperature overshoot | Controller tuning error or SSR shorted |
| Temperature not reaching setpoint | Underrated heater, voltage drop, or insulation damage |
| Fluctuating temperature | Poor thermocouple contact or electrical noise |
| Panel indicators or switches not working | Faulty lamp, toggle, or internal wiring |
| Controller or PLC not responding | Software error, loose I/O module, blown power supply |
Common Furnace / Industrial Oven Problem | Possible Cause |
Door not closing properly | Bent hinges, latch misalignment, worn gasket |
Heat escaping from door | Gasket leakage or damaged refractory |
No airflow / poor circulation | Blower motor fault, fan blade broken, blocked duct |
Vibration or noise | Fan imbalance or bearing wear |
Furnace shell overheating | Damaged insulation or refractory |
Cracked refractory wall | Thermal shock or old material |
Common Furnace / Industrial Oven Problem | Possible Cause |
Burner not igniting | Faulty spark electrode, low gas pressure, or blocked nozzle |
Flame not stable | Incorrect air-fuel ratio, faulty regulator |
Flame sensor fault | Dirty or misaligned flame rod |
Black smoke or soot | Insufficient air or poor combustion |
Gas smell or leak | Loose fittings, leaking solenoid valve |
Common Furnace / Industrial Oven Problem | Typical Repair / Action |
Heating element | Inspect resistance, replace if out of spec |
Thermocouple / RTD | Calibrate or replace every 6–12 months |
Electrical panel | Tighten all terminals, clean dust buildup |
Blower motor | Lubricate bearings, check vibration |
Door gasket | Replace every 6–12 months or when hardened |
Refractory lining | Inspect for cracks or peeling; patch with refractory cement |
Exhaust fan | Check for corrosion and carbon buildup |
Control panel instruments | Verify calibration and function |
Temperature controller | Tune PID periodically, check relay output |
Safety interlocks | Test emergency stop, overtemperature cutoff, and door interlocks |
| Common Furnace / Industrial Oven Problem | Repair / Action |
| Emergency stop not working | Test circuit, replace pushbutton or relay |
| Overtemperature alarm always ON | Check thermocouple wiring polarity or faulty relay |
| Door interlock not cutting power | Replace limit switch or adjust actuator alignment |
| Cooling fan not running after shutdown | Replace time-delay relay or fan motor |
Wintherm Furnace/ Industrial Oven Expertise
With years of experience in installation, commissioning, and service repair, Wintherm provides complete troubleshooting solutions for all types of furnaces and ovens.
Our technicians ensure accurate diagnostics, high-quality replacement parts, and reliable performance restoration — helping your system run safely and efficiently.
But of course every furnace is a unique case, not every furnace is repairable. Wintherm repair and troubleshooting service for furnace and industrial ovens offers a feasible solution and our technician will advise based on the repair/troubleshooting case.
Need on-site inspection or maintenance support?
📞 Contact Wintherm today for professional furnace troubleshooting, repair, and preventive maintenance services.
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