The reason why the air conditioner doesn't cool down is that my air conditioner is fine in the morning, and it doesn't cool down when the weather is hottest after 4 pm, and the outdoor machine doesn't

The reason why the air conditioner doesn't cool down is that my air conditioner is fine in the morning, and it doesn't cool down when the weather is hottest after 4 pm, and the outdoor machine doesn't work. This situation can basically be determined as a protective shutdown of air conditioning overheating.

No cooling reason: outdoor condenser is dirty and blocked. If the outdoor condenser of the air conditioner is dirty and blocked, it will also affect the heat dissipation function of the external machine, resulting in overheating protection shutdown.

Maintenance method of air conditioner: clean the outdoor condenser.

The key part of household air conditioning cleaning is the cleaning of filter screen. First, open the cover of the indoor air conditioner, take out the filter screen, brush most of the dirt attached to the filter screen with a clean filter screen, and then soak it in the mixed solution containing air conditioner special cleaning solution or homemade cleaning solution or detergent and soap powder for 10-20 minutes, depending on the dirt on the filter screen.

After soaking, gently brush the filter screen with a bottle brush to make each filter hole clear and transparent, without traces of dirt and blockage. Then dry it with a special rag and check whether it is in good condition. After installing the filter screen on the machine body, it depends on whether it runs normally. If it is normal, you can sign for it, and the cleaning work is over.

Cleaning the household air conditioner is beneficial to improve the refrigeration efficiency; It is beneficial to improve the refrigeration effect, prolong the service life of household air-conditioning equipment, improve the energy-saving effect and benefit the health of users. The effect is healthier and more ideal than "healthy air conditioning".