Symptom Based Troubleshooting; Operation Does Not Start; Operation Sometimes Stops - Daikin Sky Air Advance RZA200D7Y1B Service Manual

2 | Troubleshooting

2.5 Symptom based troubleshooting

2.5.1 Operation does not start

2.5.2 Operation sometimes stops

Service manual
42
Check
When the operation lamp is off, there is
a power failure.
Check the power supply.
Check the type of the indoor unit.
Check the transmission between indoor
and outdoor.
Check the outdoor air thermistor.
When the operation lamp blinks, there
may be an error code, activating the
protection device.
Diagnose with remote controller
indication.
Check the operation circuit.
Check fan motor.
Check compressor.
Check
When the operation lamp is off, there is
a power failure.
Check the power supply.
Check the outdoor air thermistor.
Detail
▪ Is the power supply breaker ON?
▪ Do other electrical appliances work?
▪ Is the rated voltage (± 10%) supplied?
▪ Check the insulation of the electric
system.
Is the indoor unit type compatible with
the outdoor unit?
▪ Connection wires.
▪ Check the resistance of the outdoor
air thermistor.
▪ Check the connection of the outdoor
air thermistor.
See "2.4 Error based
4
troubleshooting" [ 18].
▪ Is the thermal fuse blown.
▪ Are wire size and wire connections
OK?.
▪ Is the magnetic switch defective?
▪ Is the overcurrent relay defective?
▪ Is the contact defective?
▪ Is the protection
defective?
▪ Is the compressor itself defective?
Detail
▪ A power failure of 2 to 10 cycles stops
air conditioner operation.
▪ Check the resistance of the outdoor
air thermistor.
▪ Check the connection of the outdoor
air thermistor.
thermostat
RZA200+250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05