OUT-43
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
NO
NO
YES
YES
NO
Are connectors of temperature
sensors T3 and T4 and wirings
of both sensors OK?
Replace one of both sensors
(T3, T4). Does Code “E5”
appear again?
Do R-T features of sensors
correspond to those that are
listed further on?
Replace Outdoor Unit’s
PCB.
YES
Replace Outdoor Unit’s
PCB.
The problem is solved.
Restore temperature
sensors’ connectors and
connect them again on
Outdoor Unit’s PCB.
Error Code on Indoor Unit
Outline of malfunction
E 5
• Troubleshooting for Error Codes shown on Display of Multi Liberty HKEU X Indoor Units
Malfunction of temperature sensor T3 (heat
exchanger’s temperature) or temperature
sensor T4 (outdoor air temperature) on
Outdoor Unit.
Malfunction of temperature sensor (broken or in short-circuit) on O.U.