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 27
RA R32 Split & multi split M-Series
2.2.2.3. “E5-00” – Compressor motor lock or overheated
2.2.2.4. “E6-00” – Compressor motor lock
Trigger
Effect
Reset
Compressor overload is detected.
Unit will stop operating.
Automatic reset if the unit runs for 60 sec-
onds without error.
Possible cause
Check
Corrective action
Faulty discharge pipe thermistor.
Check discharge pipe thermistor.
Replace discharge pipe thermistor when
required.
Faulty outdoor fan motor.
Check the fan motor.
Check fan motor connections and wiring.
Replace fan motor when required.
Adjust wiring when required.
Faulty overload protection.
Check the overload protection.
Check the overload protection connec-
tions and wiring.
Replace the overload protection when
required.
Adjust wiring when required.
Faulty expansion valve.
Check the expansion valve.
Replace the expansion valve body or
motor when required.
Faulty 4-way valve.
Check the 4-way valve.
Replace the 4-way valve coil or body
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 power module = 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.
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.
Trigger
Effect
Reset
The motor rotor does not rotate when the
compressor is energized.
Unit will not stop operating.
Automatic reset after a continuous run for
about 10 min.
Unit will stop operating.
Manual reset via user interface.
Possible cause
Check
Corrective action
Faulty discharge thermistor.
Check the discharge thermistor.
Replace discharge 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.
