35
(4) Detecting abnormalities in the outdoor unit
After the compressor has been continuously operated for 3 minutes, if the difference between the pipe temperature and
room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the differ-
ence is still out of RANGE C,the outdoor unit is functioning abnormally. Thus, the compressor stops and check code “P8”
appears on remote controller.
RANGE A : Pipe temperature is more than 5 degrees above the room temperature.
RANGE B : Pipe temperature is within 5 degrees either way of the room temperature.
RANGE C : Pipe temperature is more than 5 degrees below the room temperature.
Pipe temperature
minus room temperature
+5
0
-5
RANGE A
RANGE B
RANGE C
(degree)
(5) Drain pump control
The drain pump works in COOL or DRY operation. When operation stops or changes to HEAT mode, the drain pump con-
tinues to operate for 3 more minutes. The drain pump does not work in check mode.
<Drain sensor>
When both the drain pump and unit are operating, the drain sensor detects the temperature. This temperature tells
whether the drain water level is above or under the drain sensor. If the drain water level rises above the drain sensor due
to a drain pump malfunction, the unit will stop operating in order to prevent drain from overflowing. The check code “P5” on
the remote controller will display this occurrence.
(6) Dew prevention heater
To prevent dew from accumulating on the grille, the dew prevention heater is continuously ON during COOL operation.
It is independent of the thermostat ON/OFF.
OC211-A--2.qxp 04.9.28 4:41 PM Page 35
