OUT-58
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
Outline of malfunction
Malfunction of temp. sensor (broken or in short-circuit) on O.U.
OPERATION
TIMER
DEF./FAN
Flashing
ON
OFF
ALARM
OFF
• Troubleshooting by LED indicators of Multi Liberty (HTFU, HSFU, HRBU) X Indoor Units
NO
NO
YES
YES
NO
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.
YES
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.