Daikin Emura 3 Series Service Manual page 26

3 | Troubleshooting
3.5.17 F6-00 – Outdoor unit: Abnormal high pressure in cooling
3.5.18 F8-00 – System shutdown due to compressor internal temperature abnormality
Service manual
26
draft – 22/04/2022 08:50
Trigger
Outdoor heat exchanger
thermistor measures a
too high temperature.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Clean the outdoor heat exchanger. See "6 Maintenance" [
Possible cause: Dirty outdoor heat exchanger.
2 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.
3 Perform a check of the heat exchanger thermistor. See Thermistors.
Possible cause: Faulty heat exchanger thermistor.
4 Perform a check of the expansion valve. See Expansion valve.
Possible cause: Faulty expansion valve.
5 Perform a check of the main PCB. See Main PCB.
Possible cause: Faulty main PCB.
6 Check if the refrigerant circuit is correctly charged. See
4
circuit" [ 62].
Possible cause: Refrigerant overcharge.
7 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.
8 Check if the refrigerant circuit is clogged. See
Possible cause: Clogged refrigerant circuit.
9 Perform a check of the outdoor unit fan motor. See Outdoor unit fan motor.
Possible cause: Faulty outdoor unit fan motor.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Temperature discharge
pipe thermistor exceeds
the determined limit.
Effect
Unit will NOT stop
operating.
4
62].
4
"5.2 Refrigerant circuit" [
"5.2 Refrigerant
Effect
Unit will stop operating.
Reset
Automatic reset when
temperature drops.
4
72].
"5.2 Refrigerant
62].
4
circuit" [ 62].
Reset
Manual reset via user
interface.
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04 – 2022.04