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Errors, malfunctions and messages
Daikin Altherma M ECH
2
O
Solar storage tank with heating controller
008.1446799_00 – 07/2019 – EN
Installation and maintenance instructions
53
E9020
F3
Evaporator over-
temp
Outlet temperature sen-
sor (hot gas sensor) R2T
on the heat pump out-
door unit refrigerant
compressor too high
– Outlet temperature sensor R2T on the refrigerant compressor
or connecting cable defective.
– Refrigerant compressor defective.
●
Check, replace.
E9021
H3
HPS-System
High-pressure switch
S1PH in the heat pump
outdoor unit
– High-pressure switch S1PH defective.
– Main circuit board in the heat pump outdoor unit defective.
– Wiring, poor contact.
●
Check, replace.
E9022
H9
Fault AT sensor
Outside temperature
sensor R1T in the heat
pump outdoor unit
Sensor or connecting cable defective.
●
Check, replace.
E9023
HC
Fault DHW sensor
Storage tank tempera-
ture sensor t
DHW
E9024
J1
Fault pressure
sensor
Pressure sensor S1NPH
in the heat pump outdoor
unit
E9025
J3
Return flow sensor
Outlet temperature sen-
sor R2T in the heat
pump outdoor unit
E9026
J5
Suction pipe sen-
sor
Intake temperature sen-
sor R3T in the heat
pump outdoor unit
E9027
J6
Aircoil sensor
Defrost
Temperature sensor of
fin heat exchanger R5T
in the heat pump outdoor
unit
E9028
J7
Aircoil sensor temp
Temperature sensor of
fin heat exchanger R4T
in the heat pump outdoor
unit
E9029
J8
Fault cold sensor
OU
Fluid side temperature
sensor R6T in the heat
pump outdoor unit
Code
Malfunction /
error message
Component/
Designation
Causes and possible fault elimination
Display Internal
Содержание Altherma EBLQ05C2V3
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