Daikin R32 Sky-Air RZAG-M - J7-00 - Intermediate Heat Exchanger Thermistor Abnormality; J8-00 - Liquid Pipe Thermistor Abnormality; L1-00 - Outdoor Main PCB Abnormality

ESIE17-08 | Part 2. Troubleshooting 2.2. Error based troubleshooting
Page 34 15/11/18 | Version 1.1
R32 Sky-Air RZAG-M
2.2.2.14. “J7-00” – Intermediate heat exchanger thermistor abnormality
2.2.2.15. “J8-00” – Liquid pipe thermistor abnormality
2.2.2.16. “L1-00” – Outdoor main PCB abnormality
Possible cause Check Corrective action
Faulty heat exchanger thermistor. Check heat exchanger thermistor. Replace heat exchanger 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.
Trigger Effect Reset
Intermediate heat exchanger thermistor
R5T detects an abnormal value (open or
short circuit).
Unit will stop operating. Automatic reset.
Possible cause Check Corrective action
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.
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Faulty intermediate heat exchanger ther-
mistor.
Check intermediate heat exchanger ther-
mistor.
Replace intermediate heat exchanger
thermistor when required.
Faulty capacity adapter on outdoor PCB. Check if the correct adapter is installed.
Check if the correct spare part is installed.
Adjust capacity adapter when required.
Trigger Effect Reset
Liquid pipe thermistor detects an abnor-
mal value (open or short circuit).
Unit will stop operating. Automatic reset.
Possible cause Check Corrective action
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.
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Faulty liquid pipe thermistor. Check liquid pipe thermistor. Replace liquid pipe thermistor when
required.
Faulty capacity adapter on outdoor PCB. Check if the correct adapter is installed.
Check if the correct spare part is installed.
Adjust capacity adapter when required.
Trigger Effect Reset
Outdoor main PCB detects current/volt-
age errors.
Unit will stop operating. Manual reset via user interface.
Power reset via outdoor unit.