66 PB
TROUBLESHOOTING
E8 Function Error
In COOLING mode, E8 is defrosting protection, meaning the evaporator is too cold.
In HEAT PUMP mode, E8 is evaporator overheat protection.
Reasons and solutions:
Check if any obstacle blocks the indoor air circulation. Remove obstacles as required.
Figure 705
Evaporator or air lter is too dirty. Wash the evaporator and air lter.
Indoor fan is not running or running speed is too low. Check the fan.
In HEAT PUMP mode, ambient temperature is too high. Decrease the set point.
Make sure indoor air circulation is unblocked.
Indoor fan error. Check the fan power plug.
Figure 706
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