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NEWS
Tube heating furnaces may encounter various faults during use. Here are some common faults and their corresponding solutions:
A common rotary tube heating furnace (click on the image to view product details)
1. Power failure
No power display on the instrument after power on
Possible reasons: improper plug insertion, blown fuse, blown control circuit fuse.
resolvent:
Check if the plug is properly plugged in or connected.
Replace the fuse.
Check for short circuit. If there is no short circuit, replace the fuse.
The indicator light is not on
Possible cause: The fuse is blown.
Solution: Replace the fuse.
2. Temperature control malfunction
The temperature inside the furnace does not rise
Possible reasons: low set temperature, damaged heating element, malfunctioning temperature controller, and damaged control circuit.
resolvent:
Adjust the set temperature.
Replace the heating element.
Replace the temperature controller.
Notify professional maintenance personnel to inspect and control the circuit.
The set temperature does not match the temperature inside the furnace
Possible reasons: Damage to temperature sensors or temperature controllers, deviation between temperature measurement points and layout points.
resolvent:
Replace the temperature sensor or temperature controller.
Position the layout accurately to ensure the accuracy of the temperature measurement points.
When heating up, the temperature display does not increase but decreases instead
Possible cause: Thermocouple wiring error.
Solution: Swap the positive and negative wiring of the thermocouple.
Experimental tube heating furnace (click on the picture to view product details)
3. Alarm type malfunction
Abnormal over temperature alarm
Possible reasons: Low set temperature, malfunction of temperature controller.
resolvent:
Adjust the set temperature.
Replace the temperature controller.
Instrument SV alternately displays ORAL
Possible cause: Short circuit of thermocouple.
Solution: Replace the thermocouple.
The instrument SV alternately displays HIAL
Possible reason: The temperature inside the furnace exceeded the limit, and the instrument acted as a protective measure.
resolvent:
After the temperature drops to a safe level, the instrument will automatically return to normal.
If manual recovery is required, follow the instrument operation instructions to reset, such as pressing the red TurnOff key to disconnect the main relay, and then pressing the Enter key to check and adjust the STEP value.
4. Other faults
The ammeter has no current, while the voltmeter has voltage
Possible cause: Heating element breakage.
Solution: Open the furnace door, check and replace the broken heating element.
The electric furnace is not working, but the voltage and power supply are normal
Possible reason: Incorrect parameter settings for the electric furnace.
Solution: Contact the manufacturer, obtain guidance through video calls or other means, and reset the parameters.
Vertical tube heating furnace (click on the picture to view product details)
summary
The common faults of tubular heating furnaces involve multiple aspects such as power supply, temperature control, alarm, etc. Solving these faults requires troubleshooting and handling according to specific situations. During the processing, attention should be paid to safe operation to avoid hazards such as electric shock and high temperature. If encountering complex faults or problems that cannot be solved by oneself, professional maintenance personnel or manufacturers should be contacted in a timely manner for handling.Click to learn more tube furnaces! Or click on online customer service to learn more about product information!
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