8 Troubleshooting
247
SMGB0064 rev.0 - 08/2011
8
Alarm code
31
Incorrect Capacity Setting or Combined Capacity between Indoor Units and Outdoor Unit
• The RUN LED ickers and “ALARM” is displayed on the remote control switch.
• The unit number, the alarm code and the unit code are alternately displayed on the set temperature section. The unit
number and the alarm code are displayed on the display of the outdoor unit PCB.
- This alarm code is indicated when the total indoor unit capacity is not equal to the combined outdoor unit capacity.
Outdoor unit capacity setting is not correct
Conditions: Total I.U. Capacity < 80% of O.U. Capacity
or
Total I.U. Capacity > 125% of O.U. Capacity
Phenomenon Cause Check item
Action
(Turn OFF Main Switch)
Incorrect Capacity Setting of Indoor Unit
Check combination of indoor units
and capacity setting on PCB.
Correctly set dip switch, DSW3.
Incorrect Capacity Setting of Outdoor Unit
Check capacity setting on outdoor
unit PCB.
Correctly set dip switch, DSW3.
Total Indoor Unit Capacity Connected to the Outdoor Unit is Beyond
Permissible Range
Check outdoor unit model by
calculating total indoor units
capacity.
Ensure that total indoor unit
capacity is from 80% to 120%.
N O T E
• In case of H-LINK system, this alarm code is indicated when DSW4, RSW1 (for refrigerant system setting) on
the outdoor unit PCB and DSW5, RSW2 (for refrigerant system setting) on the indoor unit PCB are incorrectly
set.
• In this case, set correctly DSW4, RSW1, DSW5 and RSW2 after turning OFF main switch.
• (RSW2 is not equipped with some models.)
To Next Page
Loading...
