Daikin Altherma 3 H F - Error Codes: Overview

14 | Troubleshooting
Installer reference guide
180
EPGA11~16DAV3(7) + EAVZ16S18+23DA6V(7)+9W
Daikin Altherma 3 H F
4P556075-1A – 2021.09
14.4.2 Error codes: Overview
Error codes of the unit
Error code Detailed 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
7H 07 Water flow problem. Pump
deblocking active
80 01 Entering water thermistor
abnormality of outdoor unit
81 00 Leaving water temperature
sensor problem
81 01 Mixed water thermistor
abnormality.
81 06 Entering water temperature
thermistor abnormality
(indoor unit)
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)