C9-00 - Room Thermistor Abnormality; E1-00 - Outdoor Unit: Pcb Defect - Daikin Sensira RXQ25AMV1B Service Manual

2 | Troubleshooting
2.5.5 C9-00 – Room thermistor abnormality
2.5.6 E1-00 – Outdoor unit: PCB defect
Service manual
18
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Resistance value is out of
range. Temperature
measured <–43.6°C or
>90°C.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the indoor unit air (room) thermistor. See
"3.13 Thermistors" [
Possible cause: Faulty indoor unit air (room) thermistor.
2 Perform a check of the indoor unit main PCB. See
4
PCB" [ 74].
Possible cause: Faulty indoor unit main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Main PCB detects that
EEPROM is abnormal.
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" [ 118].
Possible cause:
▪ Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪ Power drop,
▪ Short circuit.
Effect
Unit will stop operating.
4
108].
Effect
Unit will stop operating.
"3.8 Main
RXQ25+35AMV1B + ARXQ25+35AMV1B + FTXQ25+35AMV1B +
Reset
Automatic reset when
resistance is within range.
"3.6 Indoor unit main
Reset
Manual reset via user
interface.
Power reset.
4
PCB" [ 81].
"4.1 Electrical
ATXQ25+35AMV1B
Split Sensira R32 BBOP
ESIE21-16 – 2022.02