P1-00" - Open Phase Or Power Supply Voltage Imbalance; P3-00" - Malfunction Of Thermistor In Electrical Box - Daikin FTXTA30AW Service Manual

ESIE17-19C | Part 2. Troubleshooting
More info:
Check procedures
"Main PCB" on page 56
2.2.2.26. "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.
Faulty capacity adapter on outdoor PCB.
More info:
Check procedures
"Main PCB" on page 56
2.2.2.27. "P3-00" – Malfunction of thermistor in electrical box
Trigger
Resistance value is out of range.
T measured < -X°C or > X°C.
Possible cause
Faulty outdoor inverter PCB.
Faulty radiation fin thermistor.
Faulty or disturbance of the power supply
(imbalance > 10%). Power drop. Short cir-
cuit.
19/08/19 | Version 1.1
Optimized Heating 4
Replacing procedures
"Replacing main PCB" on page 95
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.
Check if the correct adapter is installed.
Check if the correct spare part is installed.
Replacing procedures
"Replacing main PCB" on page 95
Effect
Unit will stop operating.
Check
Check outdoor inverter PCB.
Check if the alive led is blinking in regular
intervals.
Check if the correct spare part is installed.
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
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.
Adjust capacity adapter when required.
Reset
Automatic reset when resistance is within
range.
Corrective action
Adjust the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
Adjust the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
Adjust power supply when required.
Power reset via outdoor unit.
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