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Part 1 General Information
Do not turn on the breaker when the front panel and cabinet are removed.
Be sure to ground the air conditioner with an earthing conductor connected to
the earthing terminal.
Conduct repair works after checking that the refrigerating cycle section has
cooled down sufficiently. Otherwise, working on the unit, the hot refrigerating
cycle section can cause burns.
Do not tilt the unit while removing panels. Otherwise, the water inside the unit
can spill and wet floor.
Do not use the welder in a well-ventilated place. Using the welder in an enclosed
room can cause oxygen deficiency.
Be sure to turn off power switch before connecting or disconnecting connector,
or parts damage may be occur.
Do not use a defective or underrated circuit breaker. Use the correctly rated
breaker and fuse. Otherwise there is a risk of fire or electric shock.
Install the panel and the cover of control box securely. Otherwise there is risk of
fire or electric shock due to dust, water etc.
Indoor/outdoor wiring connections must be secured tightly and the cable should
be routed properly so that there is no force pulling the cable from the connection
terminals. Improper or loose connections can cause heat generation or fire.
Do not touch, operate, or repair the product with wet hands. Holding the plug by
hand when taking out. Otherwise there is risk of electric shock or fire.
Summary of Contents for AS - W126BMS0
Page 3: ...3 1 Safety Precautions 4 2 Nomenclature 7 Part 1 General Information...
Page 16: ...16 Part 3 Test Run 1 Check before Test Run 17 2 Test Run Flow chart 18 3 Test Run Detail 19...
Page 37: ...Part 4 Trouble Shooting 37 Troubleshooting Guide Indoor Unit...
Page 41: ...Part 4 Trouble Shooting 41 verify with hands verify with hands...
Page 46: ...Part 4 Trouble Shooting 46 3 CH23 DC Link Low Voltage Error...
Page 51: ...Part 4 Trouble Shooting 51 8 CH40 CT Sensor Error Open Short Tester Tester...
Page 53: ...Part 4 Trouble Shooting 53 10 CH53 Outdoor Unit Indoor Unit Communication Error...
Page 56: ...Part 4 Trouble Shooting 56 13 CH62 Heat Sink Overheat Error...
Page 59: ...Part 4 Trouble Shooting 59 Resistance between the lines of each 1 5 2 1 5 2 1 5 2 U V V W W U...
Page 61: ...Part 4 Trouble Shooting 61 3 CH23 DC Link Low Voltage Error...
Page 67: ...Part 4 Trouble Shooting 67 9 CH53 Outdoor Unit Indoor Unit Communication Error...
Page 68: ...Part 4 Trouble Shooting 68 10 CH60 Outdoor Unit PCB EEPROM Error...
Page 71: ...Part 4 Trouble Shooting 71 13 CH67 Outdoor BLDC Fan Lock Error...
Page 72: ...P No MFL41161608...