H0-00 - Outdoor Unit: Voltage/Current Sensor Problem - Daikin Emura RXJ20A5V1B Service Manual

3 | Troubleshooting
3.5.19 H0-00 – Outdoor unit: Voltage/current sensor problem
Service manual
32
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" [ 182].
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
"4.19 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 compliant with the regulations. See
4
circuit" [ 180].
Possible cause:
▪ Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪ Power drop,
▪ Short circuit.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
4 182].
"5.2 Refrigerant circuit" [
of the discharge
4
169].
Effect
Unit will stop operating.
"4.12 Main
"5.2 Refrigerant
4
182].
"5.2 Refrigerant circuit" [
pipe thermistor.
Reset
Manual reset via user
interface.
4
PCB" [ 117].
"5.1 Electrical
RXJ20~50A + FTXJ-A(W)(S)(B)
Split Emura 3 R32
ESIE22-04B – 2022.08
4
182].
See