Daikin EHSXB08P50BA [62/84] X errors malfunctions and messages

Daikin EHSXB08P50BA [62/84] X errors malfunctions and messages
Installation and operating instructions
62
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1441399_02 – 01/2021 – EN
8 x Errors, malfunctions and messages
E9014 E3 Coolant over-
High pressure switch
S1PH in the coolant sys
-
tem
Pressure in refrigerant system is too high.
High pressure switch S1PH or ventilator motor defective.
Check, replace.
Poor cable contact.
Flow in the heating system too low.
Filled coolant quantity too high.
Check, replace.
Service valve in the heat pump exterior unit not open.
Service valve open.
E9015 E4 Coolant under-
Pressure sensor S1NPH
in the heat pump exterior
unit
Pressure in the coolant system is too low.
Coolant quantity too low.
Check, correct cause, refill coolant.
Pressure sensor S1NPH in the heat pump exterior unit defec-
tive.
Temperature sensor lamella heat exchanger R4T in the heat
pump exterior unit defective.
Solenoid valve in the heat pump exterior unit not open.
Main board in the heat pump exterior unit defective.
Check, replace.
E9016 E5 Load protec comp
Electronic overload pro-
tection in the coolant com-
pressor
Coolant compressor overload protection triggered. Pressure dif-
ference between the high and low pressure sides in the coolant
circuit too high (>26
bar).
Coolant compressor defective.
Inverter board in the heat pump exterior unit defective.
Coolant compressor / inverter board cabling, poor contact.
Filled coolant quantity too high.
Check, replace.
Service valve in the heat pump exterior unit not open.
Service valve open.
E9017 E7 Fan blocked
Ventilator motor in the
heat pump exterior unit
A fan in the external heat pump device is blocked.
Check ventilator for the effects of contamination or
blockages, if necessary clean and clear blockage.
Ventilator motor defective.
Ventilator motor, poor contact.
Overvoltage at the ventilator motor.
Fuse in the heat pump exterior unit defective.
Inverter board in the heat pump exterior unit defective.
Check, replace.
E9018 E9 Expansion valve
Electronic expansion
valve
The electronic expansion valve in the external heat pump unit is
defective, replace.
E9019 EC
Hot water temper-
ature >85 °C
Storage tank temperature
sensor t
DHW2
The storage tank temperature sensor t
DHW2
delivers a tempera-
ture value >85 °C.
Sensor or connection cable defective.
Check, replace.
E9020 F3 Evaporator over-
Discharge temperature
sensor (hot gas sensor)
R2T on the coolant com
-
pressor of the heat pump
exterior unit too high
Discharge temperature sensor R2T at the coolant compres-
sor or connection cable defective.
Coolant compressor defective.
Check, replace.
E9021 H3 HPS-System
High pressure switch
S1PH in the heat pump
exterior unit
High pressure switch S1PH defective.
Main board in the heat pump exterior unit defective.
Cabling, poor contact.
Check, replace.
Code Malfunction /
Error messages
Component/Designation Causes and possible error correction
Display Internal

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