OUT-69
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
• Troubleshooting by LED indicators of Multi Liberty (HFIU 266 X, 356 X) Indoor Units
Outline of malfunction
OPERATION
TIMER
PRE-DEF.
Flashing
Flashing
Flashing
NO
NO
YES
YES
NO
YES
Malfunction of temp. sensor (broken or in short-circuit) on O.U.
Do connectors of T3 and T4
temperature sensors and the
wirings of both sensors OK?
Replace one or both sensors
(T3, T4). Does Code “E5”
appear again?
Do R-T features of sensors
correspond to those that are
liseted further on?
Replace Outdoor Unit’s
PCB.
Replace Outdoor Unit’s
PCB.
The problem is solved.
Restore the connectors of
temperature sensors and
connect them again to
Outdoor Unit’s PCB.
Malfunction of T3 temperature sensor (heat
exchanger’s temperature) or of T4
temperature sensor (outdoor air temperature)
on Outdoor Unit.