ESIE16-02B | Part 2. Troubleshooting 2.2. Error based troubleshooting
4/04/17 | Version 1.1 Page 29
RA R32 Split & multi split M-Series
2.2.2.8. “F3-00” – Discharge pipe temperature abnormality
2.2.2.9. “F6-00” – High pressure abnormality or refrigerant overcharge
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.
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 discharge thermistor. Check discharge thermistor. Replace discharge thermistor when
required.
Faulty heat exchanger thermistor. Check heat exchanger thermistor. Replace heat exchanger thermistor when
required.
Faulty outdoor temperature thermistor. Check outdoor temperature thermistor. Replace outdoor temperature thermistor
when required.
Trigger Effect Reset
Outdoor heat exchanger thermistor meas-
ures temperature > 60°C~65°C (depend-
ing on model).
Unit will not stop operating. Automatic reset when temperature drops
below 50°C.
Possible cause Check Corrective action
Installation space is too small. Check if the installation space is in line
with regulations.
Adjust installation space.
Dirty outdoor heat exchanger. Clean the outdoor heat exchanger.
Faulty outdoor fan motor. Check the fan motor.
Check fan motor connections and wiring.
Replace fan motor when required.
Adjust wiring when required.
Faulty stop valve. Check the stop valve. Replace the stop valve when required.
Faulty heat exchanger thermistor. Check heat exchanger thermistor. Replace heat exchanger thermistor when
required.
Faulty expansion valve. Check the expansion valve. Replace the expansion valve body or
motor when required.
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