1 | Troubleshooting
Service manual
20
(C)(F)TXA15~50A(W)(S)(T) + (C)(F)TXA15~50B(B)(S)(T) + RXA42+50A +
RXA20~35A + RXA42+50B
Split Stylish R32
ESIE18-03C – 2020.02
Possible cause:
▪ Stop valve is closed,
▪ Clogged refrigerant circuit,
▪ Refrigerant circuit NOT charged correctly,
▪ Humidity in the refrigerant circuit,
▪ Non-condensables in the refrigerant circuit,
▪ Leaking refrigerant circuit.
2 Perform a check of the discharge pipe thermistor. See
"2.18Thermistors"[4119].
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.
1.5.19 H0-00 – Outdoor unit: Voltage/current sensor problem
Trigger Effect Reset
Compressor voltage (DC)
is out of range before
start‑up.
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 Perform a check of the main PCB. See "2.11Main PCB"[481].
Possible cause: Faulty main PCB.
2 Perform a check of the inverter PCB. See "2.10Inverter PCB"[479].
Possible cause: Faulty inverter PCB.
3 Check if the power supply is conform with the regulations. See "3.1Electrical
circuit"[4131].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >10%),
▪ Power drop,
▪ Short circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
1.5.20 H3-00 – Outdoor unit: Malfunction of high pressure switch
Trigger Effect Reset
High pressure switch is
activated when
compressor is off.
Unit will stop operating. Manual reset via user
interface.