Operation Starts And The Unit Stops Immediately; Operation Stops, Unit Cannot Start For A While - Daikin Sky Air FAA71BUV1B Service Manual

3.4.8 Operation starts and the unit stops immediately

3.4.9 Operation stops, unit cannot start for a while

FAA71+100BUV1B
Sky Air indoor units
ESIE22-01 – 2022.02
Check
Check the power supply.
Check the refrigerant charge.
Check the fan motor.
Check the four way valve coil.
Check the outdoor PCB.
Check the heat exchanger.
Check the airflow.
Check
Check if standby function is activated.
Check the power supply.
Check the refrigerant charge.
Check compressor.
3 Troubleshooting
|
Detail
▪ 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
connection wiring?
▪ Overcharge.
▪ Air in the system.
▪ Water in the system.
▪ Check the magnetic switch.
▪ Check the overcurrent relay.
▪ Is there a short circuit?
▪ Is the four way valve coil broken?
▪ Is there a short circuit?
▪ Is the outdoor PCB broken?
Soiled heat exchanger, obstruction.
Soiled air filter, obstruction, installation
space.
Detail
▪ Compressor delay timer is counting.
▪ Wait for minimum 3 minutes.
▪ Low voltage?
▪ Is the size of the power cable
sufficient?
▪ Incorrect charge.
▪ Air in the system.
▪ Water in the system.
▪ Obstruction in the system.
▪ Overcurrent relay.
▪ Protection thermostat.
size of
Service manual
47