Daikin Altherma EHS Serie Manual De Instrucciones E Instalación página 142

8 x Errors, malfunctions and messages
Code Malfunction /
Error messages
Display Internal
E9004 7H Fault volume flow Flow sensor FLS
Flow temperature
E9005 8F
t >75 °C
V, BH
Flow temperature
E9006 8H
t >65 °C
V, BH
E9007 A1 IU main board def Circuit board A1P
Coolant tempera-
E9008 A5 ture outside of the
valid range
E9009 AA
STB fault
E9010 AC
E9011 C0 Fault flow sensor
E9012 C4 Fault feed flow
E9013 E1 OU main board def
Installation and operating instructions
60
Component/Designation
Water flow is too low or there is none at all. Minimum water flow
required:
Check the following items:
Flow temperature Flow temperature of the Backup-Heater (t
sensor t
V, BH
– Flow temperature sensor sending incorrect values. Tempera-
Flow temperature
sensor t
V, BH
– Contact problem A1P-bridge on X3A.
Communication between the heat pump exterior equipment and
heat pump interior equipment malfunctioning.
– Electromagnetic influences.
– Circuit board A1P defective.
No heat absorption at the plate heat exchanger.
Temperature sensor
(liquid-side coolant) t
L2
Thermal protection switch (STB) on Backup-Heater (EKBUxx)
Optional: STB Backup-
was triggered.
Heater (EKBUxx)
Bridge of connection socket "X21A" missing on board A1P.
Bridge on board A1P
Flow sensor FLS defective.
Flow sensor FLS
Measurement outside the permitted value range. Sensor or con-
Flow temperature sensor
nection cable defective.
t or t
V1 V, BH
– Main board in the heat pump exterior unit defective.
Main board of the heat
– Ventilator motor defective.
pump exterior unit
Causes and possible error correction
– Operating mode "Heating": 600 l/h
– Operating mode "Cooling": 840 l/h
– Automatic defrosting function (
All stop valves of the water circuit must be completely open.
Optional water filters must not be contaminated.
Heating system must run within its operating range.
Heating system and device-internal circulation pump must be
completely bled.
On the controller (rotary switch setting "Info"
whether there is adequate water pressure (>0.5 bar).
Check the function of the 3-way switching valve 3UVB1
(compare actual setting of 3UVB1 with BPV position
[Overview] displayed in the parameter).
If this fault occurs during defrost operation in the operating
mode room heating or hot water supply? With optional
Backup-Heater: check its power supply and fuses.
Check the fuses in the control housing of the Daikin Altherma
EHS(X/H) (pump fuse (FU1) on circuit board A1P and printed
circuit board fuse (F1) on the RoCon BM1 circuit board).
Check flow sensor FLS for contamination and function, if
necessary clean, replace.
ture sensor or connecting cable defective.
Check, replace.
Perform reset.
Replace circuit board A1P.
Check flow.
If the flow is OK, then replace the coolant temperature sensor.
Replace Backup-Heater (EKBUxx).
Plug in strapping plug.
Replace flow sensor FLS.
Check, replace.
Check, replace.
) active: 1020 l/h
) check
) is too high.
V, BH
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN