Daikin EHSXB04P30A — ошибки и неисправности системы отопления и охлаждения [47/68]

Daikin EHSXB08P30A [47/68] X errors malfunctions and messages
7 x Errors, malfunctions and messages
Daikin Altherma EHS(X/H)
Daikin Solar tank with integrated interior heat pump unit
008.1420744 – 06/2015
Installation and maintenance manual
47
7.3 Fault codes
In the case of all malfunctions / error messages due to possibly defective sensors, all associated connection cables, con-
nection points (plug contacts correctly in place) and printed circuit boards must be checked before replacing the sensor.
Component allocation: see fig. 2-1 to fig. 2-5 and fig. 7-4
Code Malfunction /
Error message
Component/Designation Causes and possible error correction
Display Internal
E9001 80 Fault T-return
Return flow temperature
se
nsor t
R2
Sensor or connection cable defective.
Check, replace.
E9002 81
Fault feed flow
sensor
Flow temperature sensor
t
V2
or t
V, BH
Sensor or connection cable defective.
Check, replace.
E9003 89
Frost protection
function
error
Plate heat exchanger
(PHE)
Measured value t
V2
<0 °C
Failure of the frost protection function for the plate heat
exchanger because the water flow is too low. See error code
E9004 / 7H.
Failure of the frost protection fun
ction of the plate heat
exchanger because there is a lack of coolant in the system.
See error code E9015 / E4.
E9004 7H Fault volume flow Flow sensor FLS
Water flow is too low or there is none at all. Minimum water flow
required:
Operating mode "Heating": 600 l/h
Operating mode "Cooling": 840 l/h
Automatic defrosting function (
) active: 1020 l/h
Check the following items:
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.
He
ating system and device-internal circulation pump must be
completely bled.
On the controller (rotary switch setting "Info" ) check
whether there is adequate water pressure (>0.5 bar).
Ch
eck the function of the 3-way switching valve 3UVB1
(compare actual setting of 3UVB1 with BPV position
[Overview] displayed in the parameter).
If this fa
ult occurs during defrost operation in the operating
mode room heating or hot water supply? With optional backup
heater: check its power supply and fuses.
Ch
eck 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).
Ch
eck flow sensor FLS for contamination and function, if
necessary clean, replace.
E9005 8F
Flow temperature
t
V, BH
>75 °C
Flow temperature sensor
t
V, BH
Flow temperature of the backup heater (t
V, BH
) is too high.
Flow temperature sensor sending incorrect values. Tempera-
ture sensor or connecting cable defective.
Check, replace.
Contact problem A1P-bridge on X3A.
E9006 8H
Flow temperature
t
V, BH
>65 °C
Flow temperature sensor
t
V, BH
E9007 A1 IU main board def Circuit board A1P
Communication between the heat pump exterior equipment and
hea
t pump interior equipment malfunctioning.
Electromagnetic influences.
Perform reset.
Circuit board A1P defective.
Re
place circuit board A1P.
E9008 A5
Coolant tempera-
ture outside of the
val
id range
Temperature sensor (liq-
uid-side coolant) t
L2
No heat absorption at the plate heat exchanger.
Check flow.
If the flow is OK, then replace the coolant temperature sensor.

Содержание

Узнайте о распространенных ошибках и неисправностях в системах отопления и охлаждения. Получите советы по диагностике и устранению неполадок для эффективной работы.

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