Directed Electronics 9405T Manual de Serviço descarregar pdf (Página 22)

5-1

Samsung Electronics

5. Troubleshooting

5-1 Items to be checked first

5-2 Self-diagnosis and corrective actions

Troubleshooting

First, Items to be checked first

Second, Check the corrective actions in the case of occurrence of self-diagnosis mode

Third, When the trouble is not related to the 1st or 2nd items above, check the troubled area in

detail in accordance with the fault analysis method by symptom.

No. Cause Corrective actions

1 E1 Room temperature sensor Replace the room temperature

short sensor

Room temperature Check the main PCB pattern

sensor open and components for short or open

No. Operation of air-conditioner Description

1 The compressor does not operate when the When restarting the compressor, the operation of the compressor is

desired temperature is set at a lower delayed for 3 minutes to protect the compressor.

level than the room temperature. Normal operation is possible only after an elapse of 3 minutes,

even when applying the initial power.

2 The fan speed cannot be controlled The fan speed is automatically set at the

during auto or turbo operation. MICOM during auto and turbo operation.

3 The temperature is not set during auto, The desired temperature is automatically set at the MICOM

fan or turbo operation. during auto and turbo operation.

The fan operation circulates the room air without temperature control.

1 ) Is the supply voltage appro p r i a t e ?

The supply voltage: should be AC 187V-AC 253V/60Hz

2) Is the connecting wire between the indoor unit and outdoor unit appro p r i a t e ?

The indoor unit and outdoor unit should be connected with each other by 3 cables.

Be sure to check whether the cables for the indoor unit and outdoor unit are securely connected

by the same terminal number.

3) When any claim occurs according to the contents of the table below, it is not related the trouble of

the air-conditioner at all.

Temperature

display

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 44 45

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