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DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
Outline of malfunction
Too low/too high power supply voltage on Outdoor Unit.
OPERATION TIMER
DEF./FAN
Flashing
ON
OFF
ALARM
ON
• Troubleshooting by LED indicators of Multi Liberty (HTFU, HSFU, HRBU) X Indoor Units
NO
NO
SÌ
Do power supply voltage values
correspond to the the system’s
operation specification?
Replace Outdoor Unit’s
PCB.
The problem is solved.
Error of power supply voltage on
Outdoor Unit.
Disconnect the system from power supply and wait
some minutes. Connect the system to power supply
again. Has anomaly been solved?
Measure the voltage on secondary side of
transformer on Outdoor Unit’s PCB. Is detected
voltage 12~14V AC?
NO
YES
Contact
the
Electricity
Company for solving the
problem.