Daikin Altherma 3 H F - Page 183

14 | Troubleshooting
Installer reference guide
183
EPGA11~16DAV3(7) + EAVZ16S18+23DA6V(7)+9W
Daikin Altherma 3 H F
4P556075-1A – 2021.09
Error code Detailed error code Description
JA 00 OU: Malfunction of high
pressure sensor
JA 17 Refrigerant pressure sensor
abnormality
L1 00 Malfunction of INV PCB
L3 00 OU: Electrical box
temperature rise problem
L4 00 OU: Malfunction of inverter
radiating fin temperature
rise
L5 00 OU: Inverter instantaneous
overcurrent (DC)
L8 00 Malfunction triggered by a
thermal protection in the
inverter PCB
L9 00 Prevention of compressor lock
LC 00 Malfunction in communication
system of outdoor unit
P1 00 Open-phase power supply
imbalance
P3 00 Abnormal direct current
P4 00 OU: Malfunction of radiating
fin temperature sensor
PJ 00 Capacity setting mismatch
U0 00 OU: Shortage of refrigerant
U1 00 Malfunction by reverse phase/
open-phase
U2 00 OU: Defect of power supply
voltage
U3 00 Underfloor heating screed
dryout function not completed
correctly
U4 00 Indoor/outdoor unit
communication problem
U5 00 User interface communication
problem
U7 00 OU: Transmission malfunction
between main CPU- INV CPU
U8 01 Connection with LAN adapter
lost
U8 02 Connection with room
thermostat lost
U8 03 No connection with room
thermostat