Daikin Split Comfora R32, Service Manual

Page: 17 / 164

1 | Troubleshooting
Service manual
17
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
Split Comfora R32
ESIE18-01C – 2020.07
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.14 F6-00 – Outdoor unit: Abnormal high pressure in cooling
Trigger Effect Reset
Outdoor heat exchanger
thermistor measures a
too high temperature. Unit will NOT stop
operating. Automatic reset when
temperature drops.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Clean the outdoor heat exchanger. See "4 Maintenance" [
4
132].
Possible cause: Dirty outdoor heat exchanger.
2 Check that all stop valves of the refrigerant circuit are open. See
"3.2 Refrigerant circuit" [
4
123].
Possible cause: Closed stop valve in the refrigerant circuit.
3 Perform a check of the heat exchanger thermistor. See
"2.14 Thermistors" [
4
110].
Possible cause: Faulty heat exchanger thermistor.
4 Perform a check of the expansion valve. See "2.3 Expansion valve" [
4
54].
Possible cause: Faulty expansion valve.
5 Perform a check of the main PCB. See "2.8 Main PCB" [ 4 75].
Possible cause: Faulty main PCB.
6 Check if the refrigerant circuit is correctly charged. See "3.2 Refrigerant
circuit" [
4
123].
Possible cause: Refrigerant overcharge.
7 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
"3.2 Refrigerant circuit" [
4
123].
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
8 Check if the refrigerant circuit is clogged. See "3.2 Refrigerant circuit" [
4
123].
Possible cause: Clogged refrigerant circuit.
9 Perform a check of the outdoor unit fan motor. See "2.9 Outdoor unit fan
motor" [ 4 81].
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.