Daikin Altherma EHSX04P50D Installations- Und Wartungsanleitung Seite 54

8 Faults and malfunctions
Code Component/Designation
E9055 Room temperature sensor
(optional)
E9056 Outside temperature sensor
(optional)
E9057
E9058 Controller housing in the
outdoor unit
E9059 Inverter in the outdoor unit
E9060 Software
W8006 Pressure sensor DS
W8007
Tab. 8-2 Fault codes
INFORMATION
Observe maximum temperature sensor tightening torque
(see Chap. 10.3).
Fig. 8-1 Components in the heat pump circuit
Item Designation
a Plate heat ex-
changer (con-
denser)
b Fan motor
c Fin-cooled heat
exchanger (va-
poriser)
(2)
Only for 11-16 kW heat pump outdoor units.
Installation and maintenance instructions
52
Error
Room temperature sensor fault
Room temperature sensor fault
Overpressure in the refrigerant circuit; shutdown by
high-pressure switch
Temperature fault
Temperature fault
Screed program not ended correctly
Pressure loss warning
Water pressure in heating system too high
Item Designation
N 4-way switch
valve (—>
Heating, ····>
Cooling)
O Inverter circuit
board
R1T External tem-
perature sensor
Possible fault rectification
Sensor or connecting cable defective
▪ Check, replace
Sensor or connecting cable defective
▪ Check, replace
Please contact your service partner
Please contact your service partner
Please contact your service partner
▪ Check the screed program
▪ Restart the program if necessary
Warning message: Maximum permissible pressure
drop exceeded.
Insufficient water in the heating system.
▪ Check the heating system for leaks, top up water.
Warning message: Water pressure has exceeded
permissible maximum value.
▪ Diaphragm expansion vessel defective or incor-
rect admission pressure set.
▪ Check, replace.
▪ [Max Pressure] parameter setting too low.
▪ Set the parameter if necessary. If the setting is
correct,
▪ drain water to reduce system pressure.
Item Designation
d
e Filter
f Electronic ex-
pansion valve
g Service valve
(fluid line)
h Service valve
with mainten-
ance connec-
tion (gas line)
i Accumulator
K Refrigerant
compressor
Tab. 8-3
Item Designation
R2T Outlet temperat-
ure sensor (re-
frigerant com-
pressor)
(2)
R3T Inlet temperat-
ure sensor (re-
frigerant com-
pressor)
(2)
R4T Temperature
sensor of fin-
cooled heat ex-
changer input
R5T Temperature
sensor of fin-
cooled heat ex-
changer middle
(2)
R6T Fluid line tem-
perature sensor
(t )
L2
(2)
R10T Temperature
sensor on in-
verter circuit
board
S1PH High-pressure
switch
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN