E07 Exhaust temperature is too high
Fault action
1 Display fault
2 Stop all outputs except water pump
Fault handling
1 Check whether the condenser ventilation and heat dissipation are good and whether there is a lack of refrigerant
2 Whether the ambient temperature is higher than 43℃ when cooling and higher than 24℃ when heating
3 Whether the electronic expansion valve is normal, and whether the water pump and water flow are normal when heating
4 Whether the T4 plug and wiring are reliable
5 Check or replace the T4 temperature sensor, check or replace the control main board