Daikin Altherma 3 R F (split heat pump, R32)
Daikin · Heat pumps · 85 codes · 47 with plain-language explanation
Guides
- Daikin Altherma 3: reading an error, checking water pressure and bleeding radiators safely
The user interface shows the error and its description. The manual explains where to read the water pressure and how to bleed radiators safely.
- Daikin Altherma 3: what to do in case of a fault (code description, history, emergency heater) and maintenance
The manual explains how to see the error description and history, when emergency operation with the backup heater can be used, and which maintenance is for the installer.
Error codes
- 7H-01 Water flow problem with plain-language explanation
- 7H-04 Water flow problem during domestic hot water production with plain-language explanation
- 7H-05 Water flow problem during heating/sampling with plain-language explanation
- 7H-06 Water flow problem during cooling/defrost with plain-language explanation
- 80-01 Returning water temperature sensor problem source text only
- 81-00 Leaving water temperature sensor problem with plain-language explanation
- 89-01 Heat exchanger freeze-up protection activated during defrost (error) with plain-language explanation
- 89-02 Heat exchanger freeze-up protection activated during heating / DHW operation. (warning) with plain-language explanation
- 89-03 Heat exchanger freeze-up protection activated during defrost (warning) with plain-language explanation
- 89-05 Heat exchanger freeze-up protection activated during cooling operation. (error) source text only
- 89-06 Heat exchanger freeze-up protection activated during cooling operation. (warning) source text only
- 8F-00 Abnormal increase outlet water temperature (DHW) with plain-language explanation
- 8H-00 Abnormal increase outlet water temperature with plain-language explanation
- 8H-01 Overheating/undercooling mixed water circuit with plain-language explanation
- 8H-02 Overheating mixed water circuit (thermostat) with plain-language explanation
- 8H-03 Overheating water circuit (thermostat) with plain-language explanation
- A1-00 Zero cross detection problem with plain-language explanation
- A5-00 OU: High pressure peak cut / freeze protection problem with plain-language explanation
- AA-01 Backup heater overheated or BUH power cable not connected with plain-language explanation
- AC-00 Booster heater overheated with plain-language explanation
- AH-00 Tank disinfection function not completed correctly with plain-language explanation
- AJ-03 Too long DHW heat-up time required with plain-language explanation
- C0-00 Flow sensor malfunction with plain-language explanation
- C4-00 Heat exchanger temperature sensor problem with plain-language explanation
- C5-00 Heat exchanger thermistor abnormality source text only
- CJ-02 Room temperature sensor problem source text only
- E1-00 OU: PCB defect with plain-language explanation
- E2-00 Leakage current detection error source text only
- E3-00 OU: Actuation of high pressure switch (HPS) with plain-language explanation
- E3-24 High pressure sensor abnormality source text only
- E4-00 Abnormal suction pressure source text only
- E5-00 OU: Overheat of inverter compressor motor with plain-language explanation
- E6-00 OU: Compressor startup defect with plain-language explanation
- E7-00 OU: Malfunction of outdoor unit fan motor with plain-language explanation
- E8-00 OU: Power input overvoltage with plain-language explanation
- E9-00 Malfunction of electronic expansion valve source text only
- EA-00 OU: Cool/heat switchover problem with plain-language explanation
- EC-00 Abnormal increase tank temperature with plain-language explanation
- EC-04 Tank preheating source text only
- F3-00 OU: Malfunction of discharge pipe temperature source text only
- F6-00 OU: Abnormal high pressure in cooling with plain-language explanation
- FA-00 OU: Abnormal high pressure, actuation of HPS with plain-language explanation
- H0-00 OU: Voltage/current sensor problem with plain-language explanation
- H1-00 External temperature sensor problem with plain-language explanation
- H3-00 OU: Malfunction of high pressure switch (HPS) with plain-language explanation
- H5-00 Malfunction of compressor overload protection source text only
- H6-00 OU: Malfunction of position detection sensor source text only
- H8-00 OU: Malfunction of compressor input (CT) system source text only
- H9-00 OU: Malfunction of outdoor air thermistor source text only
- HC-00 Tank temperature sensor problem with plain-language explanation
- HC-01 Second tank temperature sensor problem source text only
- HJ-10 Water pressure sensor abnormality with plain-language explanation
- J3-00 OU: Malfunction of discharge pipe thermistor source text only
- J6-00 OU: Malfunction of heat exchanger thermistor source text only
- J6-07 OU: Malfunction of heat exchanger thermistor source text only
- JA-00 OU: Malfunction of high pressure sensor source text only
- L1-00 Malfunction of INV PCB source text only
- L3-00 OU: Electrical box temperature rise problem source text only
- L4-00 OU: Malfunction of inverter radiating fin temperature rise source text only
- L5-00 OU: Inverter instantaneous overcurrent (DC) with plain-language explanation
- L8-00 Malfunction triggered by a thermal protection in the inverter PCB source text only
- L9-00 Prevention of compressor lock source text only
- LC-00 Malfunction in communication system of outdoor unit source text only
- P1-00 Open-phase power supply imbalance source text only
- P3-00 Abnormal direct current source text only
- P4-00 OU: Malfunction of radiating fin temperature sensor source text only
- PJ-00 Capacity setting mismatch source text only
- U0-00 OU: Shortage of refrigerant with plain-language explanation
- U1-00 Malfunction by reverse phase/open-phase source text only
- U2-00 OU: Defect of power supply voltage with plain-language explanation
- U3-00 Underfloor heating screed dryout function not completed correctly with plain-language explanation
- U4-00 Indoor/outdoor unit communication problem with plain-language explanation
- U5-00 User interface communication problem with plain-language explanation
- U7-00 OU: Transmission malfunction between main CPU- INV CPU source text only
- U8-01 Connection with LAN adapter lost with plain-language explanation
- U8-02 Connection with room thermostat lost with plain-language explanation
- U8-03 No connection with room thermostat with plain-language explanation
- U8-04 Unknown USB device source text only
- U8-05 File malfunction source text only
- U8-07 P1P2 communication error source text only
- UA-00 Indoor unit, outdoor unit matching problem with plain-language explanation
- UA-16 Extension/hydro communication problem source text only
- UA-17 Tank type problem with plain-language explanation
- UA-21 Extension/hydro mismatch problem source text only
- UF-00 Reversed piping or bad communication wiring detection. source text only