Daikin FTXJ25A2V1BW - Page 25

3 | Troubleshooting
Service manual
25
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04 – 2022.04
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.5.16 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
"5.2Refrigerant circuit"[462].
Possible cause: Closed stop valve in the refrigerant circuit.
2 Check if the refrigerant circuit is correctly charged. See "5.2 Refrigerant
circuit"[462].
Possible cause: Refrigerant overcharge or shortage.
3 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See "5.2Refrigerant circuit"[462].
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
4 Check if the refrigerant circuit is clogged. See "5.2Refrigerant circuit"[462].
Possible cause: Clogged refrigerant circuit.
5 Perform a check of the 4‑way valve. See 4-way valve.
Possible cause: Faulty 4‑way valve.
6 Perform a check of the expansion valve. See Expansion valve.
Possible cause: Faulty expansion valve.
7 Perform a check of the main PCB. See Main PCB.
Possible cause: Faulty main PCB.
8 Perform a check of all refrigerant side thermistors. See Thermistors.
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–22/04/2022 08:50