P1-01-02-03 - Open Phase Or Unbalanced Power Supply Detection By Inverter Pcb A3P; P1-07-08-09 - Open Phase Or Unbalanced Power Supply Detection By Inverter Pcb A6P; P2-00 - Refrigerant Auto-Charge Interrupted - Daikin VRV IV+ Service Manual

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Trigger Effect
No transmission Unit will stop
between main PCB operating.
and inverter PCB
A6P .
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the main PCB. See
page 106.
Possible cause: Faulty main PCB or wrong capacity setting.
2 Perform a check of the noise filter PCB A2P. See
filter PCB" on page 110.
Possible cause: Faulty noise filter PCB A2P.
3 Perform a check of the inverter PCB A3P. See
PCB" on page 99.
Possible cause: Faulty inverter PCB A3P.
4 Perform a check of the noise filter PCB A5P. See
filter PCB" on page 110.
Possible cause: Faulty noise filter PCB A5P.
5 Perform a check of the inverter PCB A6P. See
PCB" on page 99.
Possible cause: Faulty inverter PCB A6P.
6 Check the wiring between the PCB's. See
diagram" on page 146.
Possible cause: Faulty wiring between PCB's.
7 Check if the correct spare part is installed for all PCB's. See
checking procedures of the specific PCB's.
Possible cause: Wrong spare part PCB installed.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
2.3.93 P1-01-02-03 – Open phase or unbalanced
power supply detection by inverter PCB
A3P
Main error code Sub error code
P1 01
02
03
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple
outdoor unit configurations. Main outdoor unit is the unit to
which F1‑F2 IN transmission line is connected. Main, Sub
1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Trigger Effect
Inverter PCB A3P Unit will stop
detects power operating.
unbalance >4%.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ Heat Pump
ESIE18-14 – 2019.07
1 Check if the power supply is conform with the regulations. See
Reset
Automatic reset.
2 Perform a check of the inverter PCB A3P. See
"3.9 Main PCB" on
"3.10 Noise
2.3.94
"3.8 Inverter
Main error code
P1
"3.10 Noise
"3.8 Inverter
"6.2 Wiring
Trigger
Inverter PCB A6P
detects power
unbalance >4%.
To solve the error code
1 Check if the power supply is conform with the regulations. See
Unit
Main
Sub 1
Sub 2
2 Perform a check of the inverter PCB A6P. See
Reset
2.3.95
Manual reset via user
interface.
Trigger
Automatic reset.
Auto-charge function
is terminated before
finished.
"4.1 Electrical circuit" on page 130.
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance
>10%),
▪ Power drop,
▪ Short circuit.
PCB" on page 99.
Possible cause: Faulty inverter PCB A3P.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
P1-07-08-09 – Open phase or unbalanced
power supply detection by inverter PCB
A6P
Sub error code
07
08
09
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple
outdoor unit configurations. Main outdoor unit is the unit to
which F1‑F2 IN transmission line is connected. Main, Sub
1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Effect
Unit will stop
operating.
INFORMATION
It is recommended to perform the checks in the listed
order.
"4.1 Electrical circuit" on page 130.
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance
>10%),
▪ Power drop,
▪ Short circuit.
PCB" on page 99.
Possible cause: Faulty inverter PCB A6P.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
P2-00 – Refrigerant auto-charge
interrupted
Effect
Auto-charge
operation will
terminate.
2 Troubleshooting
"3.8 Inverter
Unit
Main
Sub 1
Sub 2
Reset
Manual reset via user
interface.
Automatic reset.
"3.8 Inverter
Reset
Push BS3 (return)
button once.
Service manual
47