Daikin Altherma 3 H HT ECH2O ETSH16P30D Guide De Référence Installateur page 46

7 Faults and malfunctions
Error Code Component/Designation Error
number
9050 H0-00 Software
9052 H8-00 Software
9053 JA-00 Pressure sensor, outdoor
unit
9054
9055 Room temperature sensor
(optional)
9056 Outside temperature
sensor (optional)
9057
9058 Controller housing in the
outdoor unit
9059 Inverter in the outdoor unit Temperature error
9060 Software
9061 C1-11 ACS communication mal-
function
9062 C5-00 Refrigerant/heat ex-
changer outside the range
9063 C8-01 Input current sensor out of
range
9064 E2-00 Creepage current circuit
board has detected a
creepage current on the
power line of the device
9065 E4-00 The suction pressure was
several times too low (de-
tected by the sensor/pres-
sure sensor or low-pres-
sure switch)
Installer reference guide
46
Possible error rectification
Voltage/current sensor Power supply condition malfunction detected before or directly
after the compressor starts up
▪ Check the compressor.
▪ Check the compressor's connection and wiring.
▪ Check the operation of the expansion valve (fluid return flow).
▪ Check the refrigerant filling capacity and check for leaks.
▪ Check the outer inverter conductor plate.
▪ Check that the current flow LED flashes at regular intervals.
▪ Check that the correct replacement part has been installed.
▪ Check that the outer main conductor plate is receiving a power
supply.
Compressor system Compressor operating frequency below 55 Hz, voltage below 0.1 V
and input current below 0.5 A
▪ Check the compressor.
▪ Check the compressor's connection and wiring.
▪ Check the operation of the expansion valve (fluid return flow).
▪ Check the refrigerant filling capacity and check for leaks.
▪ Check that the power supply meets the regulations. Check for
frequency fluctuations.
▪ Check the outer inverter conductor plate.
▪ Check that the current flow LED flashes at regular intervals.
▪ Check that the correct replacement part has been installed.
Refrigerant pressure Pressure sensor detects an abnormal value for 3 minutes
sensor (> 4.5 MPa or < -0.05 MPa)
▪ Check the pressure sensor.
▪ Check that the current flow LED flashes at regular intervals.
▪ Check that the correct replacement part has been installed.
▪ Check that the outer main conductor plate is receiving a power
supply.
Temperature sensor error Sensor or connecting cable defective
▪ Check, replace
Temperature sensor error Sensor or connecting cable defective
▪ Check, replace
Overpressure in refriger- Contact service partner
ant circuit
Temperature error Contact service partner
Contact service partner
▪ Check the screed program
Screed program not
ended correctly
▪ Restart the program if necessary
ACS communication mal- Contact service partner
function
▪ Check sensor and plug connections.
Heat exchanger thermistor
abnormality
▪ If necessary, contact service partner
Current sensor abnormal- Contact service partner
ity
Leakage current detection Contact service partner
error
Abnormal suction pres- Contact service partner
sure
Daikin Altherma ETS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1447299_00 – 06/2019 – EN