3
|
Troubleshooting
Service manual
48
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.42 E9-00 – Malfunction of electronic expansion valve
Trigger
Effect
Reset
No continuity of the
expansion valve.
Unit will stop operating.
Manual reset via user
interface.
Minimum expansion valve
opening and suction
superheat <4 K and
discharge superheat <5 K.
Power reset via outdoor
unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform
a
check
of
all
refrigerant
side
thermistors.
See
Possible cause:
Faulty refrigerant side thermistor(s).
2
Perform a check of the expansion valve. See
Possible cause:
Faulty expansion valve.
3
Check that all stop valves of the refrigerant circuit are open. See
256].
Possible cause:
Closed stop valve in the refrigerant circuit.
4
Check if the refrigerant circuit is clogged. See
256].
Possible cause:
Clogged refrigerant circuit.
5
Check if the refrigerant circuit is correctly charged. See
256].
Possible cause:
Refrigerant overcharge.
6
Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
Possible cause:
Non‑condensables and/or humidity in the refrigerant circuit.
7
Perform a check of the main PCB. See
Possible cause:
Faulty main PCB.
8
Check if the power supply is compliant with the regulations. See
254].
draft – 31/05/2022 15:53
Summary of Contents for EBLA04E V Series
Page 322: ...14 14...
Page 323: ......