5 Common Boiler Problems and Basic Troubleshooting You Should Know

           Boiler is considered the heart of the production process in many industries, including food factories, hospitals, and chemical plants. Even a minor issue in the system can disrupt operations and pose safety risks to both machinery and personnel. In this article, we’ll walk you through the 5 most common boiler issues, along with tips on how to check and resolve them early — to help prevent small issues from turning into major ones.

1. Boiler Leaks

           One of the most common issues is water leakage from the unit. This often results from deteriorated heat exchange tubes, broken or loose seals, or corrosion from chemicals in the water. Sometimes, internal pressure that exceeds system limits can also cause leaks.

           Signs include water stains on the floor, abnormal water sounds, or pressure drops. The basic fix is to immediately shut down the system, clean the leak area, and temporarily seal it with tape or adhesive. Then, call a professional technician to handle the repair. Contact MP Thai Hirakawa for assistance.

2. Boiler Not Heating or Producing Low Steam

           This issue may stem from various causes, such as clogged fuel nozzles, low pressure, or poor water quality. If ignored, it could overwork the system and shorten its lifespan. If you notice a drop in temperature or pressure, start by checking the burner nozzle, cleaning any scale buildup, and improving water quality with a softener system.

3. Unusual Noises from the Boiler

           Unusual sounds during operation—such as banging, boiling, or air pressure noises—could indicate overheating, rust buildup, or air trapped in the system, all of which reduce efficiency.

If you hear odd noises, check the system's pressure and temperature. If the noise persists, stop the unit and have a technician inspect it immediately.

4. Boiler Shuts Down or Runs Unreliably

       When a boiler keeps shutting down or operates unpredictably, the problem is often linked to electrical issues, faulty pressure or temperature sensors, or ignition system malfunctions. As a basic check, make sure the power supply is stable, try resetting the unit, and confirm that the water level is within the recommended range. If the issue keeps coming back, it’s best to have an experienced technician inspect the system to prevent further damage or unexpected breakdowns.

5. Cloudy Water or Scale Buildup in the System

       Cloudy water or scale buildup inside a boiler can seriously reduce heat transfer efficiency. Over time, this leads to higher energy consumption and increases the risk of corrosion and leaks. Regular cleaning and using properly filtered water are the most effective ways to prevent these problems. If scale buildup continues to occur, professional cleaning services from MPThai Hirakawa can help restore system performance safely and efficiently.

Summary

       Understanding common boiler problems isn’t just about avoiding equipment failure—it also helps reduce hidden costs caused by unplanned downtime. Issues like boiler leaks or insufficient heating may seem minor at first, but if left unresolved, they can quickly develop into larger, more costly problems. Regular inspection and timely maintenance are key to keeping the boiler system running reliably and efficiently.

If you’re experiencing boiler problems, don’t wait until the situation gets worse. Get expert advice and on-site inspection services from MPThai Hirakawa to keep your boiler operating safely, efficiently, and reliably.