Understanding Water Flow Alarms in Laser Cutting Machine Chillers

When your laser cutting machine suddenly displays a high-temperature water flow alarm, it indicates critical cooling system issues that require immediate attention. This guide explains how to diagnose and resolve these alarms in industrial laser cutting machine chillers.

Common Causes of Water Flow Alarms

1. External Water Line Issues (Laser Cutting Machine Side)

Kinked or clogged cooling water pipes

Loose hose connections in laser cutting machine water cooling system

Blocked filters in the laser cutter's heat exchanger

2. Internal Chiller Problems

Faulty water pump in laser cutting machine chiller

Airlocks in the cooling circuit

Scale buildup restricting flow

Defective flow sensors

Step-by-Step Troubleshooting

Test 1: Isolate the Problem

Short-circuit the chiller's output/return ports with a bypass hose

Restart the laser cutting machine cooling system

If alarm stops → Problem is in external laser cutting machine water lines

If alarm continues → Chiller internal issue

Test 2: Check Water Flow

Observe water flow from output port:

Strong flow → Faulty flow sensor in laser cutting machine chiller

Weak/no flow → Pump failure or blockage

Preventive Maintenance Tips for Laser Cutting Machine Cooling Systems

✔ Monthly inspection of all water lines

✔ Quarterly chiller descaling (use approved cleaners)

✔ Annual pump maintenance

✔ Install water quality monitoring for high-power laser cutting machines

When to Call Professionals

Seek technical support if:

Alarms persist after basic troubleshooting

You notice coolant discoloration

Pump makes unusual noises