4 |
4. Service procedures
(B) Check the sensor temperature readings
The air conditioner has thermo sensors which are used to control the unit.
❏Each sensor has an address which is made up of the indoor unit address, and the sensor address. The indoor unit address is used only when several units are hooked up to one remote controller (group control). If there is only one unit, made up of one indoor and one outdoor unit, then only the sensor address should be put in, as shown in the procedure below.
Follow this procedure to display the temperature of each sensor:
aOn the remote controller, press both 
and 
buttons at the same time for more than 4 seconds. (Ref. Fig.
bThe UNIT No., the address and temperature of the sensors instead of its usual informa- tion will flash on the display.
❏Following example shows the UNIT No. (Indoor unit address) is fixed at 01– 01.
❑In case of group control, select the UNIT NO. (Indoor unit address) which you want to
check with 
button.
❏Each time you press the 
, 
( 
) button you can select a different sensor, and the display shows the sensor address and temperature as shown Fig.
Sensor address
Sensor temperature °F
Unit No. (Indoor unit address)
a
1929_M_I
Fig.
SM830082
IV - 22
