Specifications

(14) Self diagnosis function

When something abnormal happens on the outdoor unit, indoor unit fan motor and each thermistor (heat exchanger, room tempera-

ture, ) it will be indicated by flashing lamps.

(a) Abnormality of outdoor unit: When the indoor heat exchanger temperature does not fall to 25ºC or below for 40 minutes

(12 type : 20 minutes) after 5 minutes have elapsed since the compressor operation start,

the abnormality stop occurs. (The timer lamp flashes 5 times.)

(b) Abnormality of indoor fan motor: The indoor fan motor revolves at a rate under 300 rpm for 30 seconds or longer, the

RUN lamp will flash.

thermistor measures less than –20ºC for more than 3 seconds with the

airconditioner “OFF”. (will not flashing during operation)

(d) Abnormality room temperature thermistor: RUN lamp will flashing when the input temperature of the room tem-

perature thermistor measures less than –20ºC for more than 3 seconds

with the airconditioner “OFF”. (will not flashing during operation)

Note (1) If the above abnormalities happen concurrently, the lamp will flashing in the order of item number (a) through (d) above.

(13) Three-Minute Forced Operation

When the compressor begins operating the thermal operation is not effective for 3 minutes, so operation continues as is in the

operation mode. (After 3 minutes has passed the thermal operation is effective.)

However, stopping the compressor via a stop signal or protection control has priority.