Common faults and analysis of thermostats

Create Date: 2024-8-30 12:03:23|Source: RKC

Common faults of thermostats

1. There is no display when the power is on. This type of problem first determines whether the power supply is available and whether the power supply matches the power supply required by the thermostat, and then checks whether the wiring is secure. The problem is still there, then it is the problem of the thermostat itself.

2. There is a display, and the control is wrong. This type of problem starts with checking the control wiring, and then takes into account the sensors and actuators.

3. There is a deviation between the temperature controlled by the thermostat and the actual temperature. This kind of problem should be a problem of PID parameter tuning, and the PID parameter needs to be set again.

4. After heating for a period of time, the temperature does not change, and it is always the ambient temperature. This kind of problem, in fact, is a thermocouple fault, which can easily cause the thermostat to display the ambient temperature.

5. During the heating process, the temperature is getting lower and lower. It is very likely that the thermocouple is reversed.

6. There is a big difference between the display of the thermostat and the actual value. This type of problem can be checked for loose wiring, damaged sensor, mismatch between the type of sensor used and the sensor type selected by the meter, etc.
Common faults and analysis of thermostats

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