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 Operates Inconsistently

Frequent shutdowns or inconsistent operation may be caused by electrical issues, faulty pressure or temperature sensors, or ignition failures. Start by checking the power source, resetting the unit, and checking water levels. If the issue remains unresolved, contact an experienced technician.

5. Cloudy Water or Scale Buildup in the System

Cloudy water or internal scale buildup reduces heat transfer efficiency, increasing energy consumption and risking leaks due to corrosion. The best prevention is regular cleaning and using filtered water. If the problem persists, seek a professional cleaning service from MPThai Hirakawa.

Summary

Understanding boiler problems isn’t just about preventing equipment damage — it also helps reduce hidden costs from unexpected production downtime. Common issues like “boiler leaks” or “insufficient heating” can become serious if left unchecked.

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