Stop Overheating Issues With The Right Coolant Leak Detector

Overheating is one of the most common and costly issues in industrial equipment. It can damage critical components, lead to unplanned downtime, and reduce operational efficiency. One of the main causes of overheating is a coolant leak. Fortunately, there's a straightforward way to identify the issue before it becomes serious: using a Coolant leak detector. In this guide, we'll walk you through everything you need to know to prevent overheating problems using the right tool.

Why Does Industrial Equipment Overheat?

Industrial systems generate a large amount of heat during operation. Cooling systems are built to regulate this heat and maintain optimal performance. When those systems are compromised due to a leak or blockage, temperatures rise to dangerous levels. Here are a few common causes of overheating in industrial environments:

• Low coolant levels due to unnoticed leaks
• Leaks in coolant lines, tanks, or connectors
• Clogged cooling passages or blocked radiators
• Faulty thermostatic controls or cooling fans
• Extended operation under heavy load or high ambient temperatures

Catching these issues early is key, and a coolant leak detector helps do exactly that.

What Is a Coolant Leak Detector?

A coolant leak detector is a tool used to identify leaks in systems that rely on liquid-based cooling. These tools come in different forms but serve the same purpose: to find leaks that may otherwise go unnoticed until they cause performance issues or system failure.

Here are the three main types of coolant leak detectors:

• UV Dye Kits: Add a fluorescent dye to the coolant. If there's a leak, the dye becomes visible under UV light.
• Pressure Testers: These devices pressurise the system and detect pressure loss, which indicates a leak.
• Electronic Leak Detectors: Advanced tools that sense escaping vapour or gas from the coolant, often used in enclosed or hard-to-reach areas.

These detectors enable technicians to locate the source of a leak quickly and accurately, thereby reducing downtime and preventing equipment failure.

Signs You Might Have a Coolant Leak

Before using a coolant leak detector, it's important to look out for early warning signs of a possible issue:

• Unusual temperature spikes or system overheating
• Low coolant reservoir levels or constant refilling
• Visible puddles or stains near machinery or piping
• A sweet or chemical-like odour around the system
• Steam or condensation from system joints or connections

Spotting these symptoms early can prevent bigger problems down the line.

Types of Coolant Leak Detectors

Here's a closer look at the different types of coolant leak detectors and when each is most useful:

1. UV Dye Kits

• Add UV dye to the coolant supply
• Run the system briefly
• Use a UV light to inspect for glowing leak points

Best for: External leaks and routine maintenance checks.

2. Pressure Testers

• Connect to the cooling circuit
• Apply pressure using a manual or digital pump
• Monitor pressure readings to find drops indicating a leak

Best for: Both internal and external leaks in larger systems.

3. Electronic Detectors

• Detect escaping coolant vapour or gas
• Non-invasive with fast, accurate results
• Often used in noisy or enclosed environments

Best for: Hard-to-detect or hidden leaks in machinery and HVAC systems.

How to Choose the Right Coolant Leak Detector

Choosing the right tool depends on your operational setup, maintenance practices, and budget. Here's what to consider:

• Experience Level: UV dye kits are easy to use, while pressure testers and electronic detectors may require technical know-how.
• System Type: Ensure compatibility with the coolant type and system material.
• Ease of Use: Look for tools with clear instructions and user-friendly features.
• Cost: UV kits are budget-friendly, while electronic detectors are more expensive but offer greater precision.
• Detection Accuracy: High-end detectors provide quicker and more reliable results.

How to Use a Coolant Leak Detector (Step-by-Step)

Here's a simple guide to using each type of detector:

For UV Dye Kits:

1. Add the recommended amount of UV dye to the coolant reservoir.
2. Operate the system for 10–15 minutes.
3. Power down and inspect all components with a UV flashlight.
4. Look for glowing dye at joints or connections to find leaks.

For Pressure Testers:

1. Ensure the system is powered down and cool.
2. Connect the tester to the appropriate inlet.
3. Pump pressure into the system.
4. Observe the gauge for pressure loss and inspect visible connections.

Tip: Always follow manufacturer guidelines for safe and accurate use.

Preventing Future Coolant Leaks

Once you've identified and fixed a leak, it's important to take proactive steps to avoid future problems:

• Regularly check coolant levels
• Inspect all hoses, seals, and connectors for wear
• Replace ageing components on schedule
• Flush and replace the coolant at recommended intervals
• Use only approved coolants for your machinery

Preventive maintenance helps extend equipment life and reduce downtime.

Final Thoughts

Coolant leaks are a major cause of overheating; however, with the right coolant leak detector, you can identify and address issues before they cause damage. Whether you manage an HVAC system, industrial machinery, or power generation units, utilising leak detection tools is a smart and cost-effective strategy.

Stay proactive. Keep your cooling systems in top shape—and ensure smooth, uninterrupted operations across your facility.