ESIE17-19C
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Part 2. Troubleshooting
2.2. Error based troubleshooting
Page 30
19/08/19
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Version 1.1
Optimized Heating 4
More info:
2.2.2.9. “F3-00” – Discharge pipe temperature abnormality
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.
Faulty room thermistor.
Check room thermistor.
Replace room thermistor when required.
Faulty indoor heat exchanger thermistor.
Check indoor heat exchanger thermistor.
Replace indoor heat exchanger thermistor
when required.
Refrigerant shortage.
Check for refrigerant shortage. Refer to
the nameplate for the correct charge.
Charge the correct refrigerant amount
when required.
Humidity in refrigerant (ice formation in
expansion valve).
Check for humidity in the refrigerant.
In case of suspicion of humidity, recover,
vacuum and recharge with virgin refriger-
ant.
Non condensables in refrigerant.
Check for non condensables in refriger-
ant.
In case of suspicion of non condensables,
recover, vacuum and recharge with virgin
refrigerant.
Stop valve is closed.
Check stop valve.
Open stop valve when required.
Faulty stop valve.
Check the stop valve.
Replace the stop valve when required.
Wrong combination hybrid and outdoor
unit.
Check if correct hybrid is installed.
Make official combination hybrid and out-
door unit.
Check procedures
Replacing procedures
"Replacing 4-way valve coil" on page 83
"Replacing 4-way valve body" on page 81
"Replacing main PCB" on page 95
"Refrigerant thermistors" on page 60
"Product specific information" on page 118
Trigger
Effect
Reset
Discharge temperature is too high:
• If the discharge temperature detected
is above A°C, 10 times within 200 min.
• If within 200 min the discharge
temperature detected is 10 times
above B°C for 15 min.
Unit will not stop operating.
Automatic reset when temperature drops
below C°C.
Unit will stop operating.
Manual reset via remote controller.
Possible cause
Check
Corrective action
Refrigerant shortage.
Check for refrigerant shortage. Refer to
the nameplate for the correct charge.
Charge the correct refrigerant amount
when required.
Humidity in refrigerant (ice formation in
expansion valve).
Check for humidity in the refrigerant.
In case of suspicion of humidity, recover,
vacuum and recharge with virgin refriger-
ant.
Non condensables in refrigerant.
Check for non condensables in refriger-
ant.
In case of suspicion of non condensables,
recover, vacuum and recharge with virgin
refrigerant.
Stop valve is closed.
Check if stop valve is open.
Open stop valve when required.
Faulty 4-way valve.
Check the 4-way valve.
Replace the 4-way valve coil or body
when required.
Faulty expansion valve.
Check the expansion valve.
Replace the expansion valve body or
motor when required.
Possible cause
Check
Corrective action
