MTC Overheating

Mold temperature controllers(MTCs) play a critical role in maintaining precise and stable temperatures during industrial molding processes. However, during commissioning or daily operation, a mold temperature controller(MTC) may sometimes experience minor issues, and many operators can feel confused or anxious when the unit suddenly overheats.   Why is the mold temperature controller(MTC) overheating? How can this issue be resolved safely and efficiently? Here, Hengde shares a comprehensive guide to help you understand the common causes of mold temperature controller(MTC) overheating and the best ways to troubleshoot it.   Common Causes and Solutions of Mold Temperature Controller Overheating： Cause    Description   Solution Temperature Control System Malfunction Faulty sensors or control panel may cause continuous heating, leading to overheating of the mold temperature controller(MTC). Check temperature settings, inspect sensors, and replace damaged components. Heater or Heating Element Issues Damaged or oversized heaters, or dry-running due to low fluid levels, can overheat the mold temperature controller(MTC). Regularly inspect and clean heating elements, ensure proper fluid level, match heater power to process needs. Insufficient Fluid Flow Pump failure, clogged filters, or blocked piping reduces thermal circulation, causing uneven heating of the mold temperature controller(MTC). Verify pump function, clean filters, and ensure unobstructed piping for stable circulation. Inadequate Cooling Dusty fans, blocked heat exchangers, or low water flow reduce heat dissipation, increasing temperature of the mold temperature controller(MTC). Clean air or water cooling systems, ensure proper water flow and fan operation. Exceeding Load Capacity Operating beyond design limits or high ambient temperature may lead to mold temperature controller(MTC) overheating. Run the system within rated capacity; consider higher-power models for heavy-duty applications. Safety Device Failure Malfunctioning thermal switches or pressure sensors can prevent protective shutdowns of the mold temperature controller(MTC). Regularly test safety devices to ensure proper operation and timely alarms. Solenoid Valve Malfunction Solenoid valve plug Solenoid valve coil aging or damaged Clean the solenoid valve Need to change parts     Key Tips for Mold Temperature Controller Maintenance Maintain proper fluid (oil/water) levels before startup of the mold temperature controller(MTC). Avoid sudden power increases or pump shutdowns to prevent dry heating. Schedule annual inspections for temperature sensors, heaters, pumps, and safety devices of the mold temperature controller(MTC).   Conclusion   Regular maintenance and correct operation are essential to prevent mold temperature controller overheating. Understanding these causes and solutions ensures stable temperature control, consistent product quality, and prolonged equipment lifespan. In actual commissioning and operation, the most common causes of mold temperature controller(MTC) overheating include damaged cooling water solenoid valves (or other control valves), insufficient heater power, malfunctioning temperature controllers, and improperly configured electrical settings.   Have questions about your mold temperature controller(MTC), or want to find the best solution for your production line? Reach out to our technical team (www.hengdechiller.com) – we’d love to help!  Choose Hengde，Choose Perfect Mold Temperature Controller！