Orima ORPE-09 Libro De Instrucciones página 30

Detection
Meaning
codes
E1 Abnormal sense of coil pipe sensor
E2 Abnormal sense of room temperature sensor
E4 Anti-frost protection
FL The air conditioner is in water full alarm state
When heating indicator is displayed, the air conditioner is
in anti-freezing or defrosting state, and this is a normal
phenomenon.