OUT-45
DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
NO
YES
YES
YES
Are power supply voltage’s values
normal?
Solve the problem and test
the system.
NO
Are wirings OK?
Restore the connections and
test the system.
YES
NO
NO
Inspect Inverter Module: are
there scorch marks on the
components?
Replace the Inverter Module.
YES
Protection Code on Indoor Unit
Outline of Protection function
P 0
Overcurrent error on Outdoor Unit’s Inverter Module
Are compressor’s wirings OK?
Is it breakdown between P-N,
P-V, P-W, N-V, N-W or V-W of
Inverter Module?
Replace the Inverter Module.
Inspect the compressor.
• Troubleshooting for Protection Codes shown on Display of Multi Liberty HKEU X Indoor Units
Overcurrent error on Outdoor Unit’s
IPM.