Daikin Altherma EHSX04P50D Installations- Und Wartungsanleitung Seite 53

Code Component/Designation
E9049 Temperature sensor on the
evaporator
E9050 Software
E9052 Software
E9053 Pressure sensor
E9054
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
Error
Cooling high pressure
Voltage/current sensor
Compressor system
Refrigerant pressure sensor
8 Faults and malfunctions
Possible fault rectification
The temperature measured by the temperature
sensor on the fin heat exchanger exceeds 60 °C
▪ Check that the installation room meets the regula-
tions.
▪ Check the fan.
▪ Check the fan motor's connection and wiring.
▪ Check the expansion valve.
▪ 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 re-
ceiving a power supply.
▪ Check the shut-off valves.
▪ Check the heat exchanger.
▪ Check the temperature sensor on the fin heat ex-
changer.
▪ Check the quality of the refrigerant.
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 re-
ceiving a power supply.
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 regula-
tions. 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.
Pressure sensor detects an abnormal value for
3 minutes (> 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 re-
ceiving a power supply.
Installation and maintenance instructions
51