Daikin Emura 3 Series Service Manual page 25

3.5.16 F3-00 – Outdoor unit: Malfunction of discharge pipe temperature
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.
Trigger
Discharge pipe thermistor
detects a too high
temperature.
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" [
Possible cause: Closed stop valve in the refrigerant circuit.
2 Check if the refrigerant circuit is correctly charged. See
4
circuit" [ 62].
Possible cause: Refrigerant overcharge or shortage.
3 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.
4 Check if the refrigerant circuit is clogged. See
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.
Effect
Unit will NOT stop
operating.
If the error re-occurs too
soon: unit will stop
operating.
4
62].
4
"5.2 Refrigerant circuit" [
"5.2 Refrigerant
draft – 22/04/2022 08:50
3 | Troubleshooting
Reset
Automatic reset when
temperature drops
normal level.
Manual reset via user
interface.
"5.2 Refrigerant
62].
4
circuit" [ 62].
Service manual
25