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DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
P I
Too low/too high power supply voltage on O.U.
NO
NO
YES
Do power supply values
correspond to operating
specifications of system?
Replace Outdoor Unit’s
PCB.
The problem is solved.
Contact
the
Electricity
Company for solving the
problem.
Too low/too high power supply voltage
on Outdoor Unit.
Disconnect the system and wait some minutes.
Connect the system to power supply again. Has the
anomaly been solved?
Measure the transformer’s secondary side voltage
on Outdoor Unit’s PCB. Is the detected voltage
12~14V AC?
NO
YES
Protection Code on Indoor Unit
Outline of Protection function
• Troubleshooting for Protection Codes shown on Display of Multi Liberty HKEU X Indoor Units