Daikin ERGA06EAV3A - Error codes: Overview

14 | Troubleshooting
Installer reference guide
263
ERGA04~08EA + EHVH04+08SU18+23EA
Daikin Altherma 3 R F
4P629090-1A – 2021.11
14.4.2 Error codes: Overview
Error codes of the unit
Error code Description
7H-01 Water flow problem
7H-04 Water flow problem during domestic hot water
production
7H-05 Water flow problem during heating/sampling
7H-06 Water flow problem during cooling/defrost
80-01 Returning water temperature sensor problem
81-00 Leaving water temperature sensor problem
89-01 Heat exchanger freeze-up protection activated
during defrost (error)
89-02 Heat exchanger freeze-up protection activated
during heating / DHW
89-03 Heat exchanger freeze-up protection activated
during defrost (warning)
89-05 Heat exchanger freeze-up protection activated
during cooling (error)
89-06 Heat exchanger freeze-up protection activated
during defrost (warning)
8F-00 Abnormal increase outlet water temperature
(DHW)
8H-00 Abnormal increase outlet water temperature
8H-01 Overheating mixed water circuit
8H-02 Overheating mixed water circuit (thermostat)
8H-03 Overheating water circuit (thermostat)
A1-00 Zero cross detection problem
A5-00 OU: High pressure peak cut / freeze protection
problem
AA-01 Backup heater overheated or BUH power cable
not connected
AC-00 Booster heater overheated
AH-00 Tank disinfection function not completed
correctly
AJ-03 Too long DHW heat-up time required
C0-00 Flow sensor malfunction
C4-00 Heat exchanger temperature sensor problem
C5-00 Heat exchanger thermistor abnormality
CJ-02 Room temperature sensor problem