Common Fault Analysis and Troubleshooting Methods for Medium - Frequency Heating Furnaces

                              Common Fault Analysis and Troubleshooting Methods for Medium - Frequency Heating Furnaces

I. No Lighting of the Power Indicator After Power - On

Fault Causes:
① The three - phase knife switch has not been closed.
② There are issues with the power supply of the knife switch or the indicator light itself.
③ A power phase loss occurs.
④ The terminal connectors are loose.

Solutions:
① Close the knife switch.
② Inspect, repair, or replace the relevant components as required.
③ Check the power grid and examine the quick - acting fuses.
④ Tighten the connections at the wire terminals.

II. Overheating Indicator Alarm

Fault Causes:
① The water temperature is excessively high.
② There is a blockage in the water - circulation system.
③ The temperature sensor is malfunctioning.

Solutions:
① Add water to the water - storage tank.
② Remove the dirt and debris clogging the water circuit.
③ Contact the manufacturer to arrange for a replacement.

III. Low Water Level Indicator Alarm

Fault Causes:
① The system pressure is too low.
② There is a blockage in the system.

Solutions:
① Adjust the system pressure or replace the water pump.
② Inspect the system and clear any blockages.

IV. Overcurrent Indicator Alarm

Fault Causes:
① An inter - turn short - circuit occurs in the inductor.
② The terminal connectors in the main circuit are loose.
③ Internal components of the equipment are damaged.

Solutions:
① Adjust the inter - turn spacing and repair the insulation.
② Conduct a comprehensive inspection and tighten the connectors after completely disconnecting the power.
③ Contact the manufacturer for maintenance services.

V. Phase Loss Indicator Alarm

Fault Causes:
① There is a phase loss in the input power supply.
② The quick - acting fuse has blown.

Solutions:
① Inspect the power grid.
② Replace the blown quick - acting fuse with one of the same specification.

VI. No Significant Current Increase When Adjusting Power

Fault Causes:
① There is an internal equipment failure.
② The gap between the inductor and the workpiece is too large.

Solutions:
① Reach out to the manufacturer for maintenance.
② Replace the inductor with an appropriate one.