Daikin Stylish Series - Cooling;Heating Switch Abnormality

1 | Troubleshooting
Service manual
17
(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:
▪ 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.
1.5.15 EA-00 – Cooling/Heating switch abnormality
Trigger Effect Reset
Room thermistor is NOT
functioning within
operation range.
Unit will NOT stop
operating.
Automatic reset after a
continuous operation for
some time.
If the error 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 4‑way valve. See "2.14-way valve"[439].
Possible cause: Faulty 4‑way valve.
2 Perform a check of the main PCB. See "2.11Main PCB"[481].
Possible cause: Faulty main PCB.
3 Perform a check of the room thermistor. See "2.18Thermistors"[4119].
Possible cause: Faulty room thermistor.
4 Perform a check of the indoor unit PCB. See "2.8Indoor unit PCB"[471].
Possible cause: Faulty indoor unit PCB.
5 Perform a check of the refrigerant circuit. See "3.2Refrigerant circuit"[4133].
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.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.