Daikin Sensira Series, Руководство по обслуживанию

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1 | Troubleshooting
Service manual
16
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Split Sensira R32
ESIE18-12E – 2021.02
Possible cause: Refrigerant overcharge or shortage.
8 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
"3.2 Refrigerant circuit" [
4
129].
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.13 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
"3.2 Refrigerant circuit" [
4
129].
Possible cause: Closed stop valve in the refrigerant circuit.
2 Check if the refrigerant circuit is correctly charged. See "3.2 Refrigerant
circuit" [
4
129].
Possible cause: Refrigerant overcharge or shortage.
3 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
"3.2 Refrigerant circuit" [ 4 129].
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
4 Check if the refrigerant circuit is clogged. See "3.2 Refrigerant circuit" [
4
129].
Possible cause: Clogged refrigerant circuit.
5 Perform a check of the 4‑way valve. See "2.1 4-way valve" [
4
37].
Possible cause: Faulty 4‑way valve.
6 Perform a check of the expansion valve. See "2.3 Expansion valve" [
4
53].
Possible cause: Faulty expansion valve.
7 Perform a check of the main PCB. See "2.8 Main PCB" [
4
74].
Possible cause: Faulty main PCB.
8 Perform a check of all refrigerant side thermistors. See
"2.13 Thermistors" [
4
117].
Possible cause: Faulty refrigerant side thermistor(s).