Daikin EKHWMX500CA [54/68] X errors malfunctions and messages

Daikin EKHWMXB300CA [54/68] X errors malfunctions and messages
8 x Errors, malfunctions and messages
Installation and maintenance instructions
54
Daikin Altherma M ECH
2
O
Solar storage tank with heating controller
008.1446799_00 – 07/2019 – EN
E9031 L5
Electrical defect
Electrical components
overvoltage fault
a) If the fault occurs <15x, the functional safety of the Altherma M
ECH
2
O is still guaranteed.
Sporadic message during continuous self-monitoring by the
device.
No further measures are required.
b) If the fault occurs 15x, it is locked and may have the following
causes:
Current mains overvoltage.
Refrigerant compressor blocked or defective.
Inverter circuit board in the heat pump outdoor unit defec-
tive.
Wiring, poor contact.
Service valves in the heat pump outdoor unit not open.
Check, eliminate cause, replace.
If necessary, contact a Daikin service technician.
E9032 L8
Electrical components
Refrigerant compressor defective.
Inverter circuit board in the heat pump outdoor unit defective.
Check, replace.
If necessary, contact a Daikin service technician.
E9033 L9
Refrigerant compressor blocked or defective.
Pressure difference between high and low pressure side too
high before starting refrigerant compressor.
Service valves in the heat pump outdoor unit not open.
Check, eliminate cause, replace.
If necessary, contact a Daikin service technician.
E9034 LC
Communication error - internal communication in the heat pump out-
door unit disturbed.
Electromagnetic influences.
Perform reset.
Main circuit board in the heat pump outdoor unit defective.
Inverter circuit board in the heat pump outdoor unit defective.
Fan motor defective.
Wiring, poor contact.
Check, eliminate cause, replace.
If necessary, contact a Daikin service technician.
E9035 P1
Circuit board
defective
Inverter circuit board in
the heat pump outdoor
unit
No supply voltage from the mains connection.
Inverter circuit board in the heat pump outdoor unit defective.
Check, eliminate cause, replace.
If necessary, contact a Daikin service technician.
E9036 P4 Electrical defect
Temperature sensor
R10T on inverter circuit
board in the heat pump
outdoor unit
Overtemperature in the heat pump outdoor unit
Inverter circuit board in the heat pump outdoor unit defective.
Temperature sensor on inverter circuit board defective, plug con-
nection X111A not correct.
Check, eliminate cause, replace.
If necessary, contact a Daikin service technician.
E9037 PJ Setting output
Output setting for heat
pump outdoor unit incor
-
rect
Contact a Daikin service technician.
E9038 U0 Coolant leak
Sensors and parameter
settings in the heat
pump outdoor unit
Refrigerant loss.
Refrigerant quantity too low. See fault code E9015 / E4.
Blockage or leak in refrigerant line.
Check, eliminate cause, top up refrigerant.
E9039 U2 Under/over voltage
Mains voltage outside of the permissible range
Sporadic fault shortly after a power failure.
No fault elimination necessary.
Inverter circuit board in the heat pump outdoor unit defective.
Check, replace.
If necessary, contact a Daikin service technician.
Code Malfunction /
error message
Component/
Designation
Causes and possible fault elimination
Display Internal

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