Lc-00" - Transmission System Abnormality; P1-00" - Open Phase Or Power Supply Voltage Imbalance - Daikin R32 Sky-Air RZAG-M Service Manual

ESIE17-08 | Part 2. Troubleshooting
Possible cause
Faulty compressor.
2.2.2.20. "LC-00" – Transmission system abnormality
Trigger
No transmission between outdoor main
PCB and outdoor inverter PCB.
Possible cause
Internal wiring is not OK.
Faulty outdoor unit main PCB.
Faulty outdoor inverter PCB.
Faulty capacity adapter on outdoor PCB.
External factory (e.g. electrical noise).
(cause when error is reset after power
reset, and error happens again after a
while).
2.2.2.21. "P1-00" – Open phase or power supply voltage imbalance
Trigger
Outdoor inverter PCB detects incorrect
power supply.
Possible cause
Faulty outdoor unit main PCB.
Faulty outdoor inverter PCB.
Faulty or disturbance of the power supply
(imbalance > 10%). Power drop. Short cir-
cuit.
15/11/18 | Version 1.1
R32 Sky-Air RZAG-M
Check
Check compressor.
Check connections and wiring of the com-
pressor.
Check expansion valve (liquid back
issue).
Check the refrigerant charge. Refer to the
nameplate for correct charge.
Effect
Unit will stop operating.
Check
Check if wiring between PCB's. (refer to
wiring diagram).
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check if the outdoor main PCB receives
power.
Check outdoor inverter PCB.
Check if the alive led is blinking in regular
intervals.
Check if the correct spare part is installed.
Check if the correct adapter is installed.
Check if the correct spare part is installed.
Check for source which could cause elec-
trical interference.
Effect
Unit will stop operating.
Check
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check if the outdoor main PCB receives
power.
Check outdoor inverter PCB.
Check if the alive led is blinking in regular
intervals.
Check if the correct spare part is installed.
Check if the power supply is conform with
regulations. No fluctuations in frequency.
2.2. Error based troubleshooting
Corrective action
Replace compressor when required.
Investigate reason of breakdown.
Replace expansion valve when required.
Fix possible leak.
Reset
Automatic reset.
Corrective action
Correct wiring.
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Adjust the power to the outdoor inverter
PCB.
Replace outdoor inverter PCB.
Adjust capacity adapter when required.
Avoid electrical interference.
Reset
Manual reset via user interface.
Automatic reset.
Corrective action
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Adjust the power to the outdoor inverter
PCB.
Replace outdoor inverter PCB.
Adjust power supply when required.
Power reset via outdoor unit.
Page 37