Error Codes: Overview - Daikin ERLA14D V3 Series Installer's Reference Manual

15 | Troubleshooting

15.4.2 Error codes: Overview

Error codes of the unit
Installer reference guide
274
Error code
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
7H-07
Water flow problem. Pump deblocking active
7H-08 Pump abnormality during operation (pump
feedback)
80-00 Returning water temperature sensor problem
81-00 Leaving water temperature sensor problem
81-01 Mixed water thermistor abnormality.
81-06
Entering water temperature thermistor
abnormality (indoor unit)
81-07 Mixed leaving water temperature after the tank
thermistor abnormality (DLWA2)
89-01
Heat exchanger freeze-up protection activated
during defrost (error)
89-02 Heat exchanger freeze-up protection activated
during heating / DHW operation. (warning)
89-03 Heat exchanger freeze-up protection activated
during defrost (warning)
89-05 Heat exchanger freeze-up protection activated
during cooling operation. (error)
89-06 Heat exchanger freeze-up protection activated
during cooling operation. (warning)
8F-00 Abnormal increase outlet water temperature
(DHW)
8H-00 Abnormal increase outlet water temperature
8H-01
Overheating/undercooling mixed water circuit
8H-02 Overheating mixed water circuit (thermostat)
8H-03 Overheating water circuit (thermostat)
8H-08 Overheating water circuit
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
Description
ERLA11~16D + EBSH/X(B)11+16P30+50D
Daikin Altherma 3 R ECH₂O
4P663482-1C – 2023.05