ESIE16-02K
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Part 2. Troubleshooting
2.2. Error based troubleshooting
31/05/21
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Version 1.1
Page 33
RA R32 Split & multi split M-Series
2.2.2.14. “H9-00” – Outdoor air temperature thermistor abnormality
2.2.2.15. “J3-00” – Discharge pipe thermistor abnormality
2.2.2.16. “J6-00” – Outdoor heat exchanger thermistor abnormality
Faulty power module.
Input current or compressor current too
low.
Faulty outdoor inverter PCB.
Check outdoor inverter PCB.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Restore the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
Faulty compressor.
Check compressor.
Check connections and wiring of the com-
pressor.
Check expansion valve (liquid back
issue).
Check the refrigerant charge. Refer to the
nameplate for correct charge.
Replace compressor when required.
Investigate reason of breakdown.
Replace expansion valve when required.
Fix possible leak.
Faulty reactor.
Check reactor.
Replace reactor when required.
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.
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.
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
