Daikin EPRA18DAV3 Installer's Reference Manual page 227

EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P587502-1B – 2020.12
Error code
HC-00 Tank temperature sensor problem
HC-01 Second tank temperature sensor problem
HJ-10 Water pressure sensor abnormality
J3-00 OU: Malfunction of discharge pipe thermistor
J3-10 Compressor port thermistor abnormality
J5-00 Malfunction of suction pipe thermistor
J6-00 OU: Malfunction of heat exchanger thermistor
J6-07
OU: Malfunction of heat exchanger thermistor
J6-32 Leaving water temperature thermistor
Abnormality (outdoor unit)
J6-33 Sensor communication error
J8-00 Malfunction of refrigerant liquid thermistor
JA-00 OU: Malfunction of high pressure sensor
JC-00
Low pressure sensor abnormality
JC-01
Evaporator pressure 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
13 Troubleshooting
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Description
Installer reference guide
227