First of all, understand: How does an auto cut work in AC?
The auto cut system is associated with AC thermostat and temperature sensor. Whenever you set a temperature of AC 24 ° C or 26 ° C, AC thermostat continuously works to maintain that temperature. As soon as the room temperature reaches that prescribed level, the AC compressor automatically cut. That is, the coolness persists, but the machine is closed, which saves electricity.
1. Temperature sensor malfunction
If the sensor is not able to catch the room temperature correctly, then thermostat will not get the right signal and the compressor will not be closed.
If thermostat is spoiled, then AC will not know how cold has been done and when to be closed.
3. Gas shortage
If AC has reduced cooling gas (refrigerant), then the coolness will not be properly and the auto cut will not be activated.

4. Fin or filter choke
If AC’s fines or filters are choke with dirt, then the cold air is not able to get out, which slows down the cooling and does not cut the auto.
If thermostat has installed a place where there is too much heat like direct sunlight or bulb, then it will not be able to read the correct temperature of the room.
AC is running continuously without stopping. Feel very cold in the room. The electricity bill suddenly increases. The voice of the compressor of AC kept coming. Despite setting the thermostat, there is no cooling control.
Measures to fix auto cut in AC
First check the temperature of AC, if you are set to 16 ° C or 18 ° C, then the auto cut will be late. Keep it on 24 ° C or 26 ° C.
2. Clean the thermostat
If thermostat has become dirty then clean it with a dry cloth and test it again.
Remove the AC filter and clean every 10-15 days. Dirty filter affects cooling.
4. Get professional gas check
If you feel that the coolness in AC is decreasing, then it is necessary to check the gas. The compressor will not be closed when there is less gas.
If the auto cut is not working even after the above measures, then the sensor or thermostat may have to be replaced.
Some extra tips for better performance of AC
Always run AC in a closed room, so that quickly cools and the auto cut is active quickly. Do AC service every 6 months. Do not reduce the temperature too much, it also increases power consumption and auto cut is late. Never apply thermostat in front of TV, bulb or incense.