Daikin FTXTA30AW - J3-00 - Discharge Pipe Thermistor Abnormality; H9-00 - Outdoor Air Temperature Thermistor Abnormality

ESIE17-19C | Part 2. Troubleshooting 2.2. Error based troubleshooting
19/08/19 | Version 1.1 Page 35
Optimized Heating 4
More info:
2.2.2.16. “H9-00” – Outdoor air temperature thermistor abnormality
More info:
2.2.2.17. “J3-00” – Discharge pipe thermistor abnormality
More info:
Faulty reactor. Check reactor. Replace reactor when required.
Check procedures Replacing procedures
"Main PCB" on page 56 "Replacing main PCB" on page 95
"Compressor" on page 51 "Replacing compressor" on page 84
"Electronic expansion valve" on page 53 "Replacing expansion valve body" on page 89
Trigger Effect Reset
Thermistor input voltage is > 4.96 V or
< 0.04 V when power is on.
Unit will stop operating. Manual reset via user interface.
Possible cause Check Corrective action
Faulty outdoor air temperature thermistor. Check outdoor temperature thermistor. Replace outdoor temperature thermistor
when required.
Faulty outdoor unit main PCB. Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check if the outdoor main PCB receives
power.
Restore the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Check procedures Replacing procedures
"Refrigerant thermistors" on page 60
"Main PCB" on page 56 "Replacing main PCB" on page 95
Trigger Effect Reset
Thermistor input voltage is > 4.96 V or
< 0.04 V when power is on.
Unit will stop operating. Manual reset via user interface.
Discharge pipe temperature is lower than
the heat exchanger temperature.
Possible cause Check Corrective action
Faulty discharge pipe thermistor. Check discharge pipe thermistor. Replace discharge pipe thermistor when
required.
Faulty outdoor unit main PCB. Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check if the outdoor main PCB receives
power.
Restore the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Check procedures Replacing procedures
"Refrigerant thermistors" on page 60
Possible cause Check Corrective action