OUT-73
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
• Troubleshooting by LED indicators of Multi Liberty HFIU 536 X Indoor Unit
NO
NO
YES
YES
NO
YES
Outline of malfunction
Malfunction of T1 sensor (room temperature) on Indoor Unit
OPERATION
TIMER
PRE-DEF.
Flashing
Flashing
OFF
Check the connector and
wirings of T1 sensor: are they
both OK?
Replace T1 sensor. Does
malfunction indication appear
again?
Do R-T features of T1 sensor
correspond to those that are
listed further on?
Replace Indoor Unit’s PCB.
Replace Indoor Unit’s PCB.
The problem is solved.
Restore temperature
sensor’s connector and
connect it again to Indoor
Unit’s PCB.
Malfunction of temperature sensor T1 (indoor
temperature) on Indoor Unit.