Daikin Altherma 3 ECH2O - Page 52

8 Faults and malfunctions
Installation and maintenance instructions
52
Daikin Altherma EHS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1444099_01 – 11/2018 – EN
Code Component/Designation Error Possible fault rectification
E9055 Room temperature sensor
(optional)
Temperature sensor error Sensor or connecting cable defective
▪ Check, replace
E9056 Outside temperature sensor
(optional)
Temperature sensor error Sensor or connecting cable defective
▪ Check, replace
E9057 Overpressure in refrigerant circuit; shutdown by
high-pressure switch
Please contact your service partner
E9058 Controller housing in the
outdoor unit
Temperature error Please contact your service partner
E9059 Inverter in the outdoor unit Temperature error Please contact your service partner
E9060 Software Floor screed program not ended correctly
▪ Check the screed program
▪ Restart the program if necessary
W8006 Pressure sensor DS Pressure loss warning Warning message: Maximum permissible pressure
drop exceeded.
Insufficient water in the heating system.
▪ Check the heating system for leaks, top up water.
W8007 Water pressure in heating system too high 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.
Tab.8-2 Fault codes
INFORMATION
Observe maximum temperature sensor tightening torque
(see Chap. 10.4).
Fig.8-1 Components in the heat pump circuit
Item Designation Item Designation
a Plate heat ex-
changer (con-
denser)
N 4-way switch
valve (—>
Heating, ····>
Cooling)
b Fan motor O Inverter circuit
board
c Fin heat ex-
changer (evap-
orator)
R1T Outside temper-
ature sensor
Item Designation Item Designation
d R2T Outlet temperat-
ure sensor (re-
frigerant com-
pressor)
e Filter R3T
(3)
Inlet temperat-
ure sensor (re-
frigerant com-
pressor)
f Electronic ex-
pansion valve
R4T
(3)
Temperature
sensor of fin-
cooled heat ex-
changer input
g Service valve
(fluid line)
R5T Centre fin heat
exchanger tem-
perature sensor
h Service valve
with mainten-
ance connec-
tion (gas line)
R6T
(3)
Fluid line tem-
perature sensor
(t
L2
)
i Accumulator R10T
(3)
Temperature
sensor on in-
verter circuit
board
K Refrigerant
compressor
S1PH High-pressure
switch
Tab.8-3
(3)
Only for 11-16kW heat pump outdoor units.