AirStage AO54FJ, Service Manual

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Trouble shooting 4
INDOOR UNIT INDOOR UNIT Error Method: Error Method:
POWER SUPPLY FREQUENCY
ABNORMAL
Detective Actuators: Detective Actuators:
Circuitry in indoor unit Control PCB
Detective details: Detective details:
When power is turned on, frequency defective occurred (test 2times
matching read Test is failed for 5 times in a row )
Lower than 45Hz or higher than 66Hz.
30A Circuit breaker
H07RN-F or
Equivalent
Min.5.0mm
Total length is
less than 50m
Connection cord
H07RN-F or
Equivalent
Max. 8.0mm
Min.5.0mm
Power supply
cord
Wire type Size Use
Check Point 1 Check Point 1 - - 1 : Check the installation work 1 : Check the installation work
Follow the installation Manual if any installation failure is found.
Forecast of Cause Forecast of Cause:
1.Relation of installation construction 2.Relation of unit
1) Use of standard material 1) Check connection of POWER CORD
2) Power supply circuit (voltage drop / Noise etc.) 2) Check Control PCB (Parts defective)
1)Check the voltage of supply voltage AC220V between (L) - (N).
If AC does not appear, check the circuitry of power supply side.
2)Check the wiring (incorrect wiring / loose wiring) of connection cable.
If there was an incorrect wiring or loose wiring, turn off the breaker and then repair.
Check Point 2 Check Point 2 - - 1 : Check connection of POWER CORD 1 : Check connection of POWER CORD
Check Cable / Breaker
Check if any loose connection or removal of cable.
Check Point 2 Check Point 2 - - 2 : Check Electrical Component of Indoor Unit 2 : Check Electrical Component of Indoor Unit
Check connection / removal / incorrect wiring of all the connectors.
Check if short mark or corrosion is on PCB
Replace Control PCB and set up the original address,then check the
normal operation.
Check Point 1 Check Point 1 - - 2 : Check Power supply 2 : Check Power supply
Check external cause (Power supply)
Instant Drop Check if there is an electric equipment with a large load in the same circuit.
Instant Power Outage Check if there is a defective contact or leakage in the power supply.
Noise Check if there is any equipment that cause the harmonic wave near the power line.
(Neon tube or Electric equipment that harmonic wave Check that the grounding is completely insulated.)
Indicate or Display: Indicate or Display:
Indoor Unit : Operation LED Flash Flash , , Timer LED Flash Flash
Swing LED Flash Flash
Outdoor Unit : LED1 Flash, LED6
1 8TIMES Blink (Indoor Unit address)
ERROR CODE : E:04 E:04
2
2
2
06-09