F8-00 - System Shutdown Due To Compressor Internal Temperature Abnormality; H0-00 - Outdoor Unit: Voltage/Current Sensor Problem - Daikin FTXA20A Service Manual

1 | Troubleshooting
1.5.18 F8-00 – System shutdown due to compressor internal temperature abnormality
1.5.19 H0-00 – Outdoor unit: Voltage/current sensor problem
Service manual
20
Trigger
Temperature discharge
pipe thermistor exceeds
the determined limit.
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" [
Possible cause: Closed stop valve in the refrigerant circuit.
2 Check if the refrigerant circuit is correctly charged. See
4
circuit" [ 158].
Possible cause: Refrigerant overcharge.
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
"2.19 Thermistors" [
Possible cause: Faulty discharge pipe thermistor or connector fault.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Compressor voltage (DC)
is out of range before
start‑up.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the main PCB. See
Possible cause: Faulty main PCB.
2 Check if the power supply is conform with the regulations. See
4
circuit" [ 156].
Effect
Unit will stop operating.
4
158].
"3.2 Refrigerant circuit" [
of the discharge
4
144].
Effect
Unit will stop operating.
"2.12 Main
FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
Reset
Manual reset via user
interface.
"3.2 Refrigerant
4
158].
"3.2 Refrigerant circuit" [
pipe thermistor.
Reset
Manual reset via user
interface.
4
PCB" [ 91].
"3.1 Electrical
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
4
158].
See