Table of contents
Service manual
3
EBLQ+EDLQ011~W1 + EBLQ+EDLQ011~0W1
+ EK(2)CB EKMB9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
Table of contents
To display the help text in case of a malfunction.......................
To check the error history..........................................................
To check the warning history.....................................................
Error based troubleshooting ......................................................
7H-01 – Abnormal flow ...............................................
7H-04 – Abnormal flow (domestic hot water)..............
7H-05 – Abnormal flow (Heating/sampling) ................
7H-06 – Abnormal flow (Cooling/defrost)....................
7H-07 – Abnormal flow / pump de-blocking ................
80-00 – Inlet water thermistor abnormality..................
81-00 – Outlet water thermistor abnormality...............
89-01 – Water heat exchange freezing abnormality ...
89-02 – Water heat exchange freezing abnormality ...
89-03 – Water heat exchange freezing abnormality ...
8H-03 – Overheating water circuit (thermostat) ..........
A1-00 – Zero cross detection abnormality ..................
A1-01 – EEPROM abnormality ...................................
A5-00 – Cooling high pressure abnormality................
AA-01 – Backup heater overheating ...........................
AC-00 – Booster heater overheating .......................... 10
AH-00 – Legionella operation failed............................ 10
C0-00 – Flow sensor malfunction ............................... 11
C0-01 – Flow switch malfunction ................................ 11
C0-02 – Flow switch malfunction ................................ 11
CJ-02 – Ambient sensor user interface abnormality ... 12
E1-00 – PCB defect .................................................... 12
E3-00 – High pressure switch abnormality ................. 12
E5-00 – Overheat of inverter compressor motor......... 13
E6-00 – Compressor startup defect ............................ 13
E7-00 – Fan lock abnormality ..................................... 14
E8-00 – Input overvoltage abnormality ....................... 14
E9-00 – Expansion valve abnormality......................... 14
EA-00 – Cooling/Heating switch abnormality.............. 14
EC-00 – Domestic hot water temperature increase .... 15
EC-04 – Tank preheating............................................ 15
F6-00 – Stop due to cooling high pressure ................. 15
FA-00 – Abnormal high pressure ................................ 16
H0-00 – Current sensor abnormality........................... 16
H1-00 – Option thermistor abnormality ....................... 16
H3-00 – High pressure switch defect .......................... 17
H6-00 – Location detection sensor abnormality.......... 17
H8-00 – Compressor input abnormality ...................... 17
H9-00 – Outdoor air thermistor abnormality................ 18
JA-00 – Pressure sensor abnormality......................... 18
L4-00 – Fin temperature increase abnormality ............ 19
L5-00 – Output over current abnormality ..................... 19
P4-00 – Fin thermistor abnormality.............................. 19
U0-00 – Shortage of refrigerant ................................... 20
U3-00 – Under floor heating screed dry out stop ......... 20
U4-00 – Indoor/outdoor transmission abnormality ....... 20
U5-00 – Remote control transmission defect............... 20
U8-01 – Lost LAN adapter connection......................... 21
UA-00 – Indoor/outdoor combination abnormality ....... 21
UA-16 – Extension/hydro communication problem...... 21
UA-21 – Extension PCB / hydro PCB mismatch error . 22
Symptom based troubleshooting ................................................ 23
Incorrect energy metering read-out.............................. 23
Water pump related ..................................................... 23
Tap water related ......................................................... 24
User interface is failure or frozen screen ..................... 25
Leak ............................................................................. 25
Water flow or volume too low....................................... 25
Compressor related ..................................................... 25
Abnormal presence of ice ............................................ 27
Domestic hot water capacity shortage ......................... 28
General capacity shortage ........................................... 28
Space heating capacity shortage................................. 30
Inaccurate temperature control .................................... 31
Power consumption too high........................................ 32
System does not start or operate................................. 33
3-way valve ................................................................................ 35
Checking procedures ................................................... 35
Repair procedures ....................................................... 36
4-way valve ................................................................................ 38
Checking procedures ................................................... 38
Repair procedures ....................................................... 39
Accumulator assembly ............................................................... 40
Checking procedures ................................................... 40
Repair procedures ....................................................... 40
Backup heater ............................................................................ 41
Built-in backup heater .................................................. 41
Backup heater kit ......................................................... 45
Backup heater thermal protector ................................................ 48
Checking procedures ................................................... 48
Repair procedures ....................................................... 48
Booster heater ............................................................................ 49
Checking procedures ................................................... 49
Repair procedures ....................................................... 49
Booster heater thermal protector................................................ 50
Checking procedures ................................................... 50
Repair procedures ....................................................... 50
Compressor ................................................................................ 50
Checking procedures ................................................... 50
Repair procedures ....................................................... 51
Crankcase heater ....................................................................... 52
Checking procedures ................................................... 52
Repair procedures ....................................................... 53
Current loop PCB ....................................................................... 53
Checking procedures ................................................... 53
Repair procedures ....................................................... 53
Expansion valve ......................................................................... 54
Checking procedures ................................................... 54
Repair procedures ....................................................... 54
Extension PCB ........................................................................... 56
Checking procedures ................................................... 56
Repair procedures ....................................................... 57
High pressure switch .................................................................. 57
Checking procedures ................................................... 57
Repair procedures ....................................................... 57
Hydro PCB ................................................................................. 58