Outdoor Unit; E1-00" - Outdoor Unit Pcb Abnormality; E3-00" - Discharge Pressure Abnormality - Daikin R32 Sky-Air RZAG-M Service Manual

ESIE17-08 | Part 2. Troubleshooting

2.2.2. Outdoor unit

2.2.2.1. "E1-00" – Outdoor unit PCB abnormality
Trigger
Outdoor main PCB detects that EEPROM
is abnormal.
Possible cause
Faulty outdoor unit main PCB.
Faulty capacity adapter on outdoor main
PCB installed.
External factor (e.g. electrical noise)
(cause when error is reset after power
reset, and error happens again after a
while).
Faulty outdoor fan motor.
Faulty or disturbance of the power supply
(imbalance > 10%). Power drop. Short cir-
cuit.
2.2.2.2. "E3-00" – Discharge pressure abnormality
Trigger
High pressure switch opens due to meas-
ure pressure > 41.7 bar.
High pressure control (measure pressure
> 38 bar) occurs 16 times within 300 min-
utes.
Possible cause
Faulty high pressure switch.
Faulty outdoor unit main PCB.
Faulty capacity adapter on outdoor PCB.
Refrigerant overcharge.
Humidity in refrigerant (ice formation in
expansion valve).
Non condensables in refrigerant.
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R32 Sky-Air RZAG-M
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 if the correct capacity adapter is
used.
Check for source which could cause elec-
trical interference.
Check the fan motor.
Check fan motor connections and wiring.
Check if the power supply is conform with
regulations. No fluctuations in frequency.
Effect
Unit will stop operating.
Check
Check high pressure switch.
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 if the correct adapter is installed.
Check if the correct spare part is installed.
Check for refrigerant overcharge. Refer to
the nameplate for the correct charge.
Check for humidity in the refrigerant.
Check for non condensables in refriger-
ant.
2.2. Error based troubleshooting
Reset
Manual reset via user interface.
Power reset via outdoor unit.
Corrective action
Restore the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Replace capacity adapter when required.
Avoid electrical interference.
Replace fan motor when required.
Adjust wiring when required.
Adjust power supply when required.
Power reset via outdoor unit.
Reset
Manual reset via user interface.
Corrective action
Replace high pressure switch.
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Adjust capacity adapter when required.
Charge the correct refrigerant amount
when required.
In case of suspicion of humidity, recover,
vacuum and recharge with virgin refriger-
ant.
In case of suspicion of non condensables,
recover, vacuum and recharge with virgin
refrigerant.
15/11/18 | Version 1.1