Why doesn't the new air conditioning unit start?

The reason is: 1, when the indoor temperature reaches the set temperature, the air conditioner will not run and the external machine will not start. 2. The service life of air conditioner is too long. 3. The air conditioner is used continuously with high power for a long time, and the air conditioner is overheated. 4. The voltage of the power socket connected to the air conditioner cannot reach the starting voltage of the air conditioner. Analysis of specific reasons: 1, external reasons, when the indoor temperature reaches the set temperature, the air conditioner does not run and the external machine does not start. 2. The service life of the air conditioner is too long, which leads to the damage of the contactor or circuit board that controls the compressor and the cooling fan, which leads to the failure of signal transmission and the inability to start. 3. The air conditioner continues to be used with high power for a long time, which leads to the high temperature of the air conditioner. The air conditioner turns on the overheat protection and automatically turns off the external machine. 4. The voltage of the power socket connected to the air conditioner can't reach the starting voltage of the air conditioner, which causes the external unit of the new air conditioner to fail to start normally. Suggested solution: 1. If the external machine cannot be started because the temperature reaches the set value, the set temperature can be changed and the external machine will be restarted. 2. It is recommended not to deal with the damage caused by air conditioning aging. Please contact the after-sales service personnel in time to repair and replace the parts. 3. If the air conditioner is overheated due to long-term use, it is necessary to temporarily stop using the air conditioner, let the air conditioner dissipate heat for a while, and restart it after one hour, and the air conditioner will start normally. 4. If the voltage is insufficient, other high-power electrical appliances that are not used for the time being can be turned off first for the normal use of the external machine; The above methods cannot solve the problem of insufficient voltage, so you can contact the property management company or the local power grid company for inspection.