ESIE17-19C
|
Part 2. Troubleshooting
2.2. Error based troubleshooting
Page 36
19/08/19
|
Version 1.1
Optimized Heating 4
2.2.2.18. “J6-00” – Outdoor heat exchanger thermistor abnormality
More info:
2.2.2.19. “L1-00” – Main PCB abnormality
"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.
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.
Check procedures
Replacing procedures
"Refrigerant thermistors" on page 60
"Replacing main PCB" on page 95
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.
Possible cause
Check
Corrective action
Blown fuse.
Check fuse on outdoor main PCB.
Replace fuse if blown.
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 outdoor inverter PCB.
Check outdoor inverter PCB.
Check if the alive led is blinking in regular
intervals.
Check if the correct spare part is installed.
Adjust the power to the outdoor inverter
PCB.
Replace outdoor inverter PCB.
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 or disturbance of the power supply
(imbalance > 10%). Power drop. Short cir-
cuit.
Check if the power supply is conform with
regulations. No fluctuations in frequency.
Adjust power supply when required.
Power reset via outdoor unit.
Check procedures
Replacing procedures
