ESIE16-02K
|
Part 2. Troubleshooting
2.3. Symptom based troubleshooting
Page 48
31/05/21
|
Version 1.1
RA R32 Split & multi split M-Series
2.3.9. Operation starts and the unit stops immediately
2.3.10. Operation stops, unit cannot start for a while
2.3.11. Indoor unit
Not available yet.
2.3.12. Outdoor unit
Not available yet.
2.3.13. System
Not applicable.
2.3.14. Others
Not applicable.
Check
Detail
Check the power supply.
Is the capacity of the safety breaker as specified?
If the earth leakage breaker is too sensitive, then increase the set
value of the earth leakage current of the breaker or replace the
breaker.
Is the circuit exclusive?
Is the rated voltage (± 10%) supplied?
Is there an incorrect size of connection wiring?
Check the refrigerant charge.
Overcharge.
Air in the system.
Water in the system.
Check the fan motor.
Check the magnetic switch.
Check the overcurrent relay.
Check the four way valve coil.
Is there a short circuit?
Is the four way valve coil broken?
Check the outdoor PCB.
Is there a short circuit?
Is the outdoor PCB broken?
Check the heat exchanger.
Soiled heat exchanger, obstruction.
Check the airflow.
Soiled air filter, obstruction, installation space.
Check
Detail
Check if standby function is activated.
Compressor delay timer is counting.
Wait for minimum 3 minutes.
Check the power supply.
Low voltage?
Is the size of the power cable sufficient?
Check the refrigerant charge.
Incorrect charge.
Air in the system.
Water in the system.
Obstruction in the system.
Check compressor.
Overcurrent relay.
Protection thermostat.