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How to fix Thermistor open detection error

1 Posts
1 Users
Aliana Jack
Posts: 329
Topic starter
Prominent Member
Joined: 9 months ago

If you own a Sharp printer, you may sometimes encounter the "Thermistor Open Detection Error." This error message can be frustrating for users, but fortunately, there are some simple steps you can take to resolve it. 

Causes :

  1. Malfunctioning Thermistor: One of the most common causes of this error is a malfunctioning thermistor. The thermistor is a small electronic component that is responsible for regulating the temperature within the printer. If the thermistor is not working correctly, it can trigger the thermistor open detection error.
  2. Loose Connection: Another cause of this error is a loose connection between the thermistor and the printer's control board. If the connection is not secure, it can cause the printer to misinterpret the temperature readings and trigger the error message.
  3. Damaged Wiring: In some cases, the wiring that connects the thermistor to the printer's control board can become damaged. If the wiring is frayed or broken, it can cause the printer to malfunction and trigger the thermistor open detection error.


Solutions :

  1. Check Thermistor: The first step in resolving the error is to check the thermistor. If it is not working correctly, you may need to replace it. You can contact Sharp printer customer service to get assistance with thermistor replacement.
  2. Secure Connection: If the thermistor is not the issue, you should check the connection between the thermistor and the control board. Make sure that the connection is secure and that there are no loose or damaged wires. If necessary, you can also replace the wiring to ensure a secure connection.
  3. Reset the Printer: Sometimes, resetting the printer to its default settings can resolve the issue. To do this, refer to the printer's user manual for instructions on how to perform a factory reset.
  4. Contact Sharp Printer Customer Service: If none of the above solutions work, you may need to contact Sharp printer customer service for further assistance. They can help troubleshoot the issue and offer solutions specific to your printer model.


Conclusion :

The thermistor open detection error on Sharp printers can be caused by a malfunctioning thermistor, loose connection, or damaged wiring. By following the above solutions, you can troubleshoot and resolve the issue. If you are still experiencing problems, don't hesitate to contact Sharp printer customer service for additional support. They are available to help you troubleshoot the issue and get your printer working properly again.