:
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
38
DIAGNOSIS AND SOLUTION (CONT.)
Indoor units mode conflict (match with multi outdoor unit)
NOTE:
No: No mode conflict
Ye s: Mode conflict
Error Code --
Malfunction decision conditions The indoor units cannot work cooling mode and heating at same time. Heating mode has a priority.
Supposed causes
Indoor unit A is operating in the
COOLING
or
FAN
mode, and the indoor unit (B) is set to the
HEATING
mode, therefore unit A powers off and unit B begins operating in the
HEATING
mode.
Indoor unit A is operating in the
HEATING
mode, and indoor unit B is set to the
COOLING
or
FAN
mode,
then unit B changes to the
STANDBY
mode and unit A will not change.
Cooling Mode Heating Mode Fan Off
Cooling Mode No Yes No No
Heating Mode Yes No Yes No
Fan No Yes No No
OFFNoNoNoNo
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