Buying a YuRun furnace is the beginning of a long-term partnership. Our support team is available worldwide to ensure your equipment runs at full performance for its entire service life.
From the moment your furnace ships until the end of its service life, our team is ready to help — remotely or on-site, anywhere in the world.
Our engineers provide detailed installation drawings and step-by-step guidance. For complex projects, we dispatch a YuRun engineer to your site to supervise installation, connect the water cooling circuit, and perform full electrical testing before handover.
Our engineering team provides rapid remote diagnosis via WhatsApp video call, email, and TeamViewer. Most electrical faults can be diagnosed remotely within hours — often without dispatching an engineer. We support multiple languages including English, Spanish, Arabic, and French.
We maintain stock of all critical consumable and wear parts — IGBT modules, capacitors, induction coils, water-cooled cables, and refractory materials. Genuine YuRun parts are dispatched within 48 hours and shipped via DHL Express to minimize your production downtime.
Every new installation includes a structured operator training program covering safe startup/shutdown procedures, daily maintenance routines, common fault recognition, and lining sintering. Available in written manuals, video guides, or on-site training sessions.
All YuRun furnaces carry an 18-month warranty on the power supply system and 12 months on the furnace body and mechanical components from the date of commissioning. Warranty claims are handled directly by our factory engineering team without third-party delays.
Already running an older SCR or aging IGBT furnace from another manufacturer? We offer power supply retrofits, control panel upgrades, and coil replacements that can extend equipment life and significantly improve energy efficiency without replacing the entire furnace body.
What happens after your furnace ships — from crate to first melt, we guide you through every step.
We provide detailed civil engineering drawings showing required foundation dimensions, cable entry points, water cooling pipe routing, and electrical room layout. Electrical single-line diagrams and equipment weight/dimension data are included so your site team can prepare before the furnace arrives.
Follow the unpacking checklist provided in the shipment documents. Inspect all components against the packing list and check for any shipping damage. Photograph and report any issues to us immediately — we resolve shipping damage claims within 5 business days. Our team is available via WhatsApp video call to guide your team through this process.
Position the furnace body and power cabinet per the layout drawings. Connect the water-cooled cables between the power supply and induction coil. Connect the cooling water inlet/outlet pipes. Check all water connections for tightness — water leaks are the most common cause of IGBT damage and must be eliminated before power-on.
Connect the 3-phase incoming power per the wiring diagrams. Start the cooling water pump and verify adequate flow rate and pressure at all measurement points. Verify cooling tower operation. Our engineer will video call to check connection photos and confirm readings before you energize the main power supply.
Construct the furnace lining using the supplied refractory ramming mass per our detailed lining manual. The sintering process — gradually heating the new lining through a controlled program — is critical to lining performance and campaign life. We provide a sintering schedule and monitor the process remotely via temperature readings.
Conduct the first test melt with your team present. YuRun engineer monitors remotely and confirms power readings, temperature curves, and melt performance are within specification. Operator training is conducted covering all key procedures. Equipment handover documentation and warranty card are issued after successful trial run.
Most furnace faults can be diagnosed and resolved remotely — often within a few hours — without waiting for an engineer to travel to your site. Our team uses video calls, photo analysis, and remote monitoring to get your furnace back online as quickly as possible.
Send a WhatsApp message or email describing the fault — include the fault code displayed on the HMI, what the furnace was doing when the fault occurred, and any visible signs (smoke, noise, warning lights). Photos or short videos are very helpful.
Our engineer schedules a video call (WhatsApp, WeChat, or Zoom) to observe the fault directly and walk through diagnostic checks with your operator. Most electrical faults are identifiable within 30–60 minutes.
If the fault is repairable on-site, our engineer guides your maintenance team step-by-step through the repair. If a component needs replacing, we identify the exact part, confirm stock availability, and dispatch it via DHL Express.
After the repair, we conduct a video call to verify correct operation before you resume production. A service report is issued for your maintenance records.
We stock all critical wear parts and consumables for every YuRun furnace model. Using genuine parts ensures performance and protects your warranty.
Infineon / Fuji brand IGBT modules matched to your power supply model. The most common electrical replacement part.
High-voltage, high-frequency water-cooled capacitors for both parallel and series resonance circuits. Specify your furnace model when ordering.
Precision-wound copper coils for all furnace capacities. Each coil is pressure-tested before dispatch. Specify furnace capacity and metal type.
High-flexibility copper water-cooled cables connecting power supply to coil. Available in standard lengths or cut-to-size.
Pre-mixed dry ramming mass in acid, neutral, and basic formulations. The highest-consumption consumable in daily furnace operations.
Replacement SCR thyristor modules for older SCR-technology furnaces, including third-party brands. Specify voltage and current rating.
Replacement PLC control boards and touchscreen HMI panels for YuRun power supply cabinets. Firmware pre-loaded and tested before dispatch.
High-conductivity copper busbars for internal power distribution. Available in standard dimensions or custom-cut. Tin-plated option available.
Before contacting our support team, check this quick reference table. Many faults can be resolved by your operator without waiting for technical support.
| Fault / Symptom | Likely Cause | Severity | First Response (Do This First) | If Not Resolved |
|---|---|---|---|---|
| Power supply trips immediately on startup | IGBT overcurrent protection triggered. Often caused by a short circuit in the coil, incorrect resonant capacitance, or a failed IGBT module. | High | Stop operation. Do NOT restart repeatedly. Check for visible water leakage inside the power cabinet. Check water flow alarm status. Inspect coil and cable connections for damage or moisture. | Contact YuRun support with fault code and photos of cabinet interior. |
| Furnace power is unstable or fluctuating | Resonant capacitor deterioration, loose busbar connections, or power supply cooling issue. | Medium | Check all busbar bolts for tightness. Check capacitor bank for visible damage or bulging. Verify cooling water flow to capacitors is adequate. Clean dust from power cabinet interior. | Request remote diagnosis. Capacitor replacement may be required. |
| Cooling water temperature alarm | Cooling tower fan failure, insufficient water flow, or clogged filter. | Medium | Stop the furnace. Check cooling tower fan operation. Check water pump pressure and flow rate. Clean or replace the water filter. Check for air locks in the cooling circuit. | Contact support. Continued operation risks IGBT damage — do not bypass the alarm. |
| Water leak detected (alarm or visible) | Coil connection joint failure, water-cooled cable fitting, or cooling tower tube rupture. | High — Stop Immediately | Stop the furnace and isolate the cooling water supply immediately. Water inside the power cabinet will destroy IGBT modules within seconds. Identify and isolate the leak source. Do NOT restart until the leak is fully repaired and cabinet interior is dried. | Contact support for coil or cable replacement. |
| Lining cracking or rapid lining wear | Incorrect sintering procedure, unsuitable lining material for the metal being melted, or charging large cold metal pieces that create thermal shock. | Medium | Do not charge metal if cracks reach the coil area. Review sintering log to verify correct procedure was followed. Confirm lining material specification matches the metal being melted. Reduce thermal shock by preheating scrap metal before charging. | Contact support for lining material consultation and relining procedure. |
| No display on HMI touchscreen | HMI power supply failure, communication cable disconnection, or screen failure. | Low | Check the 24V DC power supply to the HMI. Check communication cable connections between PLC and HMI. Attempt HMI restart by cycling its power. The furnace body itself may still be operational. | Contact support with HMI model number for replacement or firmware reboot procedure. |
| Reduced melting speed / long melt times | Lining thickness increase over time (reducing effective crucible volume), deteriorating capacitors reducing effective power, or power supply running below rated output. | Low | Check actual power output on HMI display vs. rated power. Compare current melt time against baseline recorded at commissioning. Inspect lining thickness — old lining buildup reduces capacity by 10–20%. | Send power output readings to support for analysis. Lining rebuild or capacitor service may be needed. |
| Unusual noise from power supply cabinet | Loose transformer laminations, capacitor resonance, loose bus bars, or cooling fan bearing failure. | Low–Medium | Identify whether the noise is from the transformer, capacitor bank, or cooling fan. Check all accessible bolted joints for tightness. Check cooling fans are spinning freely. | Record a short audio/video clip and send to support for diagnosis. |
⚠️ This table covers the most common field-reported issues. For any fault not listed here, or if you are unsure about any step, stop the furnace and contact our support team before proceeding. Incorrect fault response is the leading cause of secondary equipment damage.
Well-trained operators are the single biggest factor in furnace longevity and production efficiency. All YuRun purchases include training as standard.
Comprehensive operations and maintenance manual provided with every furnace shipment. Covers all procedures an operator needs to run the furnace safely and efficiently.
A library of instructional videos covering key procedures. More accessible than written manuals for hands-on operators — they can watch the video while performing the task.
A YuRun engineer visits your facility during or after commissioning to conduct hands-on operator training with your team. Recommended for larger installations or facilities without prior induction furnace experience.
Clear, straightforward warranty terms with no hidden conditions. Handled directly by our factory team.
Our most comprehensive warranty covers the heart of the furnace — the IGBT inverter power supply, including all electrical components inside the cabinet.
Covers structural and mechanical components of the furnace body, hydraulic tilting system, and other mechanical systems.