Daikin Stylish Series - H8-00 - Outdoor Unit: Malfunction of Compressor Input System

1 | Troubleshooting
Service manual
22
(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
6 Check if the refrigerant circuit is correctly charged. See "3.2 Refrigerant
circuit"[4133].
Possible cause: Refrigerant overcharge or shortage.
7 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See "3.2Refrigerant circuit"[4133].
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
8 Check if the power supply is conform with the regulations. See "3.1Electrical
circuit"[4131].
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.
1.5.22 H8-00 – Outdoor unit: Malfunction of compressor input system
Trigger Effect Reset
DC voltage or current
sensor abnormality based
on the compressor
running frequency and
the input current.
Unit will NOT stop
operating.
Automatic reset when
compressor runs normally
for 60minutes.
If the error re-occurs too
soon: 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 "2.11Main PCB"[481].
Possible cause: Faulty main PCB.
2 Perform a check of the inverter PCB. See "2.10Inverter PCB"[479].
Possible cause: Faulty inverter PCB.
3 Perform a check of the compressor. See "2.2Compressor"[445].
Possible cause: Faulty compressor.
4 Perform a check of the reactor. See "2.14Reactor"[4109].
Possible cause: Faulty reactor.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.