OUT-81
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
Error Code on Outdoor Unit
Outline of malfunction
E 3
Malfunction of temperature sensor, Gas side, on Indoor Unit “C”
Is temperature sensor T3 (outside air) connected properly?
Are sensor wirings OK?
Error Code on Outdoor Unit
Outline of malfunction
E 4
Malfunction of temperature sensor T3 (outside air) on O.U.
YES
NO
Measure the resistance sensor. Considering temperature, does resistance value
correspond to the features indicated in R-T tables (see further on)?
Replace temperature sensor T3 on Outdoor
Unit.
Restore wirings/connector of
sensor.
Replace Outdoor Unit’s main
PCB.
NO
YES
Is Gas side temperature sensor on Indoor Unit “C” properly connected?
Are sensor wirings OK?
YES
NO
Measure the sensor resistance. Considering temperature, does resistance value
correspond to the features indicated in R-T tables?
NO
YES
Restore wirings/connector of
sensor.
Replace Gas side temperature sensor on
Indoor Unit “C”.
Replace Outdoor Unit’s main
PCB.
• Troubleshooting flowcharts, referred to Error Codes displayed on Outdoor Unit: