Daikin VRV IV+ Service Manual page 133

2.3.120 P2-00 – Refrigerant auto-charge interrupted
2.3.121 P4-01-04-05 – Fin thermistor abnormality on inverter PCB A3P
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >10%),
▪ Power drop,
▪ Short circuit.
2 Perform a check of the inverter PCB A6P. See
Possible cause: Faulty inverter PCB A6P.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Auto-charge function is
terminated before
finished.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check for objects near the indoor unit that may block the airflow. See
"4.3 External factors" [
Possible cause: Airflow of the indoor unit is blocked.
2 Clean the air filters of the indoor unit(s). See service manual of the respective
indoor unit(s).
Possible cause: Faulty or clogged air filter.
3 Adjust external static pressure setting for ducted type indoor units, if
necessary.
4 Restart refrigerant auto‑charge function. See installer reference guide for
more information.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Main error code
P4
Effect
Auto-charge operation
will terminate.
4
372].
Sub error code
01
04
05
2 Troubleshooting
|
4
"3.10 Inverter PCB" [ 274].
Reset
Push BS3 (return) button
once.
Unit
Main
Sub 1
Sub 2
Service manual
133