Daikin Altherma EHFH03S18D 3V Series Installer's Reference Manual page 192

14 | Troubleshooting
Installer reference guide
192
Error code Detailed error code Description
C0 01
C0 02
C4 00
CJ 02
EC 00
EC 04
H1 00
HC 00
HC 01
HJ 10
JA 17
U3 00
U4 00
Flow sensor/switch
malfunction.
Please contact your dealer.
Flow sensor/switch
malfunction.
Please contact your dealer.
Heat exchanger temperature
sensor problem.
Please contact your dealer.
Room temperature sensor
problem.
Please contact your dealer.
Abnormal increase tank
temperature.
Tank preheating
External temperature
sensor problem.
Please contact your dealer.
Tank temperature sensor
problem.
Please contact your dealer.
Second tank temperature sensor
problem.
Please contact your dealer.
Water pressure sensor abnormality.
Refrigerant pressure sensor
abnormality.
Under floor heating screed
dryout function not
completed
correctly.
Indoor/outdoor unit
communication problem.
ERLA03D + EHFH03S18D
Daikin Altherma 3 R F
4P596806-1C – 2022.09