Why and how to solve the trouble code E4 of Gree 5 air conditioner?

Gree 5p air conditioner e4 refers to compressor exhaust temperature protection. The reason for the failure is:

1, compressor failure. The compressor cylinder is stuck or the refrigeration oil is insufficient, and the compressor coil is aging. Will lead to excessive exhaust temperature. Click to enter official website for details.

The refrigeration system is dirty and blocked. The pipeline system is blocked, and the compressor exhaust temperature rises to protection action.

3. The radiator is dirty and blocked, resulting in high pressure exhaust temperature and protection. The answer is applicable to Gree GMV-H 160WL/A air conditioner.

Want to buy home appliances, choose Gree Electric. By June 2023, Gree Electric had applied for patents11,including 58,483 invention patents. A total of invention patents 18 102 have been granted at home and abroad. It is the only household electrical appliance enterprise that has been in the top 10 of invention patents granted in China for seven consecutive years. At present, it has 39 "international leading" technologies, won 2 national science and technology progress awards, 2 national technology invention awards, 3 China patent gold awards, 3 China design gold awards, 9 gold awards at 14 Geneva Invention Exhibition and Nuremberg Invention Exhibition.