Daikin Altherma EHSX04P30D Instructions D'installation Et De Maintenance page 49

Code Component/Designation
E9021 High-pressure switch S1PH
in the heat pump outdoor
unit
E9022 Outside temperature sensor
R1T in the heat pump out-
door unit
E9023 Storage tank temperature
sensor t or t
DHW1 DHW2
E9024 Pressure sensor S1NPH in
the heat pump outdoor unit
E9025 Outlet temperature sensor
R2T in the heat pump out-
door unit
E9026 Intake temperature sensor
R3T in the heat pump out-
door unit
E9027 Temperature sensor of fin
heat exchanger R5T in the
heat pump outdoor unit de-
fective.
E9028 Temperature sensor of fin
heat exchanger R4T in the
heat pump outdoor unit de-
fective.
(only in 1116 kW system)
E9029 Fluid side temperature
sensor R6T in the heat
pump outdoor unit
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
Error
HPS system
AT sensor fault
WW sensor fault
Pressure sensor
Return flow temperature sensor fault
Intake pipe sensor fault
Aircoil sensor Defrost
Aircoil sensor Temp
AG cold sensor fault
8 Faults and malfunctions
Possible fault rectification
▪ High-pressure switch S1PH defective.
▪ Main circuit board in the heat pump outdoor unit
defective.
▪ Wiring, poor contact.
▪ Check, replace.
Sensor or connecting cable defective.
▪ Check, replace.
Installation and maintenance instructions
47