Logitech MSZ-A09NA, OB450 REVISED EDITION-B service manual Instruction of Troubleshooting, Start

Page 15

8-3. INSTRUCTION OF TROUBLESHOOTING

Start

Indoor unit oper- ates.

Outdoor unit doesn't operate.

Indoor unit operates. Outdoor unit doesn't operate normally.

Indoor unit doesn't receive the signal from remote controller.

OPERATION INDICATOR lamp on the indoor unit is flashing on and off.

Outdoor unit

 

Outdoor

 

Unit doesn't

 

Indoor unit

 

Indoor unit

operates only

 

unit doesn't

 

operate nor-

 

operates, when

 

doesn't operate,

in Test Run

 

operate even

 

mal operation

 

EMERGENCY

 

when EMER-

operation.

 

in Test Run

 

in COOL or

 

OPERATION

 

GENCY OPERA-

 

 

 

operation.

 

HEAT mode.

 

switch is pressed.

 

TION switch is

 

 

 

 

 

 

 

 

 

 

 

 

pressed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If blinking of OPERATION INDI- CATOR lamp cannot be checked, it can be checked with failure mode recall function.

"Test Run operation" means the operation within 30 minutes after EMERGENCY OPERA- TION switch is pressed.

Check room temperature thermistor.

Refer to 8-7. "Test point diagram and voltage".

Refer to "How

 

Refer to

 

Refer to 8-6.

to check

 

"Check of R.V.

 

"Check of remote

inverter/com-

 

coil".

 

controller and

pressor".

 

 

 

receiver P.C.

 

 

 

 

board".

 

 

 

 

 

1.Check indoor/out- door connecting wire. (Check if the power is supplied to the indoor unit.)

2.Refer to 8-6. "Check of indoor electronic control P.C. board and indoor fan motor".

Refer to outdoor unit service manual.

Left lamp

Left lamp

 

Left lamp

Left lamp

 

Left lamp

Left lamp

 

Left lamp

Left lamp

Flash on and

2-time flash

 

3-time flash

4-time flash

 

5-time flash

6-time flash

 

7-time flash

14-time flash

off at 0.5-sec-

Cause:

 

Cause:

Cause:

 

Cause:

Cause:

 

Cause:

Cause:

ond intervals

Indoor unit

 

Indoor unit

Indoor unit

 

Outdoor unit

Outdoor unit

 

Outdoor unit

Outdoor unit

Cause:

• Trouble

 

• Trouble of

• Trouble

 

• Outdoor

• Trouble of

 

• Trouble of

• Other ab-

Indoor/Outdoor

of room

 

indoor fan

of indoor

 

power

thermistor in

 

outdoor con-

normality

unit

temperature

 

motor

unit control

 

system

outdoor unit

 

trol system

 

• Miswiring or

/ indoor coil

 

 

 

system

 

abnormality

 

 

 

 

trouble of

thermistor

 

 

 

 

 

 

 

 

 

 

 

 

serial signal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Refer to 8-6.

Check room

 

Refer to 8-6.

 

Replace the

 

Refer to

 

Refer to

 

Check "Flow

"How to

temperature

 

"Check of

 

indoor elec-

 

"How to

 

"Check of

 

inverter P.C.

chart of the

check mis-

thermistor

 

indoor fan

 

tronic control

 

check

 

outdoor ther-

 

board or

detailed

wiring and

and indoor

 

motor".

 

P.C. board.

 

inverter/com-

 

mistors".

 

the outdoor

outdoor unit

serial signal

coil thermis-

 

 

 

 

 

pressor".

 

 

 

electronic

failure mode

error".

tor. Refer

 

 

 

 

 

 

 

 

 

 

control P.C.

recall func-

 

 

to 8-7."Test

 

 

 

 

 

 

 

 

 

 

board.

tion."

 

 

point diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and voltage".

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

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Image 15
Page 14 Page 16
Contents Revised EDITION-C ContentsMSY-A24NA MSZ-A24NAMSZ-A24NA MSY-A24NA AccessoriesPart Names and Functions MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSY-A15NA MSY-A17NASpecification Outlet AIR Speed and Coverage Range Operating RangeUnit inch Outlines and DimensionsMSZ-A09NA MSY-A15NA MSZ-A12NA MSY-A17NA MSZ-A15NA MSZ-A17NAMSZ-A24NA Wiring Diagram MSZ-A17NA MSY-A17NA Refrigerant System DiagramMSZ-A09NA MSZ-A12NA MSZ-A15NA MSY-A15NAP.C. Board Modification for Individual Operation Service FunctionsTimer Short Mode How to modify the remote controller P.C. boardOperation TroubleshootingHow to release Auto Restart Function Auto Restart FunctionOutdoor Unit MXZ series Troubleshooting procedureHow to replace batteries Information for Multi System AIR ConditionerFailure Mode Recall Function Indoor unit failure mode table Start Instruction of Troubleshooting15/17 Troubleshooting Check TableMXZ type Trouble Criterion of Main PartsCheck of indoor fan motor Troubleshooting FlowMSZ-A09/12/15/17NA MSY-A15/17NA MSZ-A24NA MSY-A24NAIndoor electronic control P.C.Board How to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios SW P.C. board Test point diagram and voltagePower monitor receiver P.C. board Indoor electronic control P.C. boardDisplay P.C. board Receiver Board MSZ-A24NA MSY-24NARemoving the panel Photo Disassembly InstructionsRemoving the electrical box Photo Operating Procedure PhotosRemoving the indoor fan motor and the line flow fan Photo Removing the horizontal vane motor unit PhotoBoard and the display P.C. board MSZ-A24NA MSY-A24NA Operating Procedure PhotosRemoving the front panel Removing the electronic control P.C. board, the receiverRemoving the line flow fan and the indoor fan motor Removing the vane motorAccessory and Remote Controller Parts ListSwitch Holder Nozzle AssemblyPower Monitor Receiver Board Holder Room TemperatureUnion Liquid AIR Cleaning Filter ANTI-ALLERGY Enzyme FilterIndoor Heat Exchanger Union GASSee Indoor Unit Functional Parts and Electrical Parts MAC-2300FT Controller KM07L Catechin AIR Filter Right AIR Cleaning MAC-415FT-EMSZ-A MSY-A Remote KM06CIndoor Coil CoverElectronic Control P.CE12 155 Ø1/2 E12 151 Indoor HeatExchanger E12 815PC/ SET CatchScrew CAP Catechin AIR FilterVane Motor Horizontal AssemblyRemote Controller KM06D Vane Motor VerticalAIR Cleaning Filter ANTI-ALLERGY Enzyme Filter Indoor Unit Display Section Microprocessor ControlFAN Operation MSY Cool OperationDRY Operation Heat Operation MSZAuto Change Over ··· Auto Mode Operation MSZ Mode selectionFuzzy control Upward Auto Vane OperationMSZ-A09/12/15/17 MSY-A15/17 MSZ-A24 MSY-A243 4 Swing 5 Vertical vane MSZ-A24, MSY-A24Program Timer Timer OperationMade in Japan Changing temperature indication F/CEMERGENCY/TEST Operation MSZ-ANA- MSY-ANA

MSZ-A09NA, OB450 REVISED EDITION-B specifications

The Logitech MSZ-A09NA, OB450 Revised Edition-B stands as a testament to professional-grade technology, designed for both home and office productivity. This advanced device combines functionality with sleek design, making it an essential tool for users demanding efficiency and performance.

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In summary, the Logitech MSZ-A09NA, OB450 Revised Edition-B excels in providing a blend of comfort, customization, and connectivity. Its thoughtful design and advanced technology make it an exceptional choice for anyone looking to enhance their computing experience. Whether for professional work, gaming, or everyday tasks, this mouse is equipped to meet the demands of modern users, offering both reliability and style.
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