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Troubleshooting
Service manual
51
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.46 F3-00 – Outdoor unit: Malfunction of discharge pipe temperature
Trigger
Effect
Reset
Discharge pipe thermistor
detects a too high
temperature.
Unit will NOT stop
operating.
Automatic reset when
temperature drops
normal level.
If the error re-occurs too
soon: unit will stop
operating.
Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Check that all stop valves of the refrigerant circuit are open. See
Possible cause:
Closed stop valve in the refrigerant circuit.
2
Check if the refrigerant circuit is correctly charged. See
Possible cause:
Refrigerant overcharge or shortage.
3
Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
256].
Possible cause:
Non‑condensables and/or humidity in the refrigerant circuit.
4
Check if the refrigerant circuit is clogged. See
Possible cause:
Clogged refrigerant circuit.
5
Perform a check of the 4‑way valve. See
Possible cause:
Faulty 4‑way valve.
6
Perform a check of the expansion valve. See
162].
Possible cause:
Faulty expansion valve.
7
Perform a check of the main PCB. See
184].
Possible cause:
Faulty main PCB.
8
Perform
a
check
of
all
refrigerant
side
thermistors.
See
217].
Possible cause:
Faulty refrigerant side thermistor(s).
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
draft – 31/05/2022 15:53
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