Overview Of Error Codes - Daikin Altherma EKHBH Series Service Manual

Troubleshooting
1.4

Overview of Error Codes

1
Malfunction code
80
81
89
7H
8H
AA
A1
A5
C0
3 3
C4
EC
HC
E1
E5
4
E6
E7
E8
EA
F3
F6
5
H0
H6
H8
H9
J3
J6
P4
L3
L4
L5
U0
U2
U4
U7
UA
3–6
Malfunction contents
Inlet water temperature thermistor abnormality
Outlet water temperature thermistor abnormality
Water heat exchanger freez-up abnormality
Flow abnormality
Outlet water temperature too high
Booster heater thermal protector is open
Hydro-box PCB abnormality
Freez-up protection or High pressure control
Flow switch abnormality
Heat exchanger thermistor abnormality
Sanitary water temperature too high
Sanitary water temperature thermistor abnormality
Outdoor unit PCB abnormality
OL Activation (compressor overload)
Compressor lock
DC fan lock
Input over current
Heating / Cooling switching failure
Discharge pipe temperature control
Too high condensing pressure
Sensor abnormailty
Compressor start up failure
CT or related abnormailty
Outdoor temperature thermistor or related abnormality
Discharge pipe thermistor failure
Heat exchanger thermistor or related abnormality
Radiation fin thermistor or related abnormality
Switch box temperature rize
Radiation fin (power transistor) temperature rize
Output over current (inverter PCB)
Refrigerant failure
Low-voltage or over-voltage detection
Signal transmission error (indoor outdoor unit)
Signal transmission error (indoor outdoor unit)
Combination error (indoor outdoor unit) or spare parts PCB
ESIE06-03
See page
3–10
3–10
??
??
??
??
3–8
3–9
??
3–10
??
3–10
3–12
3–13
3–15
3–16
3–17
3–19
3–21
3–23
3–25
3–27
3–29
3–31
3–31
3–31
3–31
3–33
3–35
3–37
3–42
3–44
3–45
3–47
??
Part 3 – Troubleshooting