Thermistor is a kind of electronic component that can change the resistance value with the change of temperature, and its main principle is to use the change of the resistance value of the material at different temperatures to achieve the purpose of sensing or compensation. However, in the process of use, the thermistor burn is a more common situation, the main reasons and solutions are as follows:
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reason
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1. Overload: If the voltage or current in the circuit exceeds the thermistor rating, it will cause it to burn out.
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2. Moisture: Long-term use in a humid environment will cause short circuits at both ends of the thermistor, leading to burnout.
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3. Overheating: Due to excessive temperature, the thermistor will age, fail and burn out.
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solution
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1. Select the appropriate thermistor with the appropriate rating, and select the appropriate type according to the voltage and current of the circuit.
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2. Keep the environment dry to avoid moisture damage to the thermistor.
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3. Increase heat dissipation measures and properly install and use the heat sink to ensure that the thermistor does not overheat.
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In short, according to the use of the environment and normal operation specifications, reasonable protection and use of thermistors can extend its service life and avoid failures such as burning out.
If the thermistor is broken, it is recommended to follow the following steps to repair it:
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1. Determine the cause of the thermistor fault by using a test tool such as a multimeter or thermistor tester.
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2. If the problem is confirmed to be resistance damage or open, you need to find the broken thermistor and remove it.
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3. Secure the new thermistor to the original position and connect cables.
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4. Reinstall and install all installation components, and then power on the device again.
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It should be noted that since thermistors are generally surface-mounted on the circuit board, they need to be repaired with appropriate tools and techniques. If you do not have the relevant experience or expertise, it is recommended to seek the help of a professional technician or relevant service provider to ensure the correct and safe repair.
Thermistor is a temperature sensitive element, when the temperature changes, its resistance value also changes. If the thermistor is broken, you can follow the following steps to repair: 1. First disconnect the thermistor wire, pay attention to record the original wiring method.
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2. Use a multimeter to test the resistance value of the thermistor. If it has lost its response, it needs to be replaced.
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3. If you want to replace the thermistor, you first need to select the same specification model as the original resistor, and ensure that the new resistor can withstand the required temperature range.
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4. Remove the original thermistor and connect it with solder.
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5. After the connection is complete, use a multimeter to check that the connection is correct and then test.
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Note: When replacing the thermistor, be sure to choose the same specification model as the original resistor, otherwise the system may not work properly. If you are not familiar with electronic repair, please seek professional help.
1. It is necessary to check whether the thermistor is surrounded by dust, and if so, just clean it up.
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2. If there is still a fault after cleaning, it is necessary to check the circuit, which may be poor contact with the circuit and need to be repaired or replaced.
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3. Sometimes the thermistor will misjudge the operation of the machine leading to no refrigeration, shut down for a while and then restart to try, if it can not be ruled out, you need to find professional maintenance personnel to deal with.
The thermistor is damaged, and can only be replaced with a thermistor of the same type and specification, which can no longer be used for maintenance. The thermistor is a temperature-sensitive component, which has a positive temperature coefficient and a negative temperature coefficient. If it is damaged, it can not be replaced with a general resistor, and a thermistor of the same type must be used.
If the thermistor is broken, it can only be replaced with the same model, and it can not be repaired by itself.