TROUBLE DIAGNOSIS
4. HOW TO DEAL WITH CLAIMS
4-1. Sound
Problems | Checks and Measures |
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"Whizz" sounds | ■ Explain general principles of sounds. |
| • All refrigerator when functioning properly have normal operating sound. The |
| compressor and fan produce sounds. |
| There is a fan in the freezer compartment which blows cool air to freezer and |
| refrigerator compartments. "Whizz" sounds are heard when the air passes |
| through the narrow holes into the freezer and refrigerator compartments. |
| ■ Cooling Fan sound in the compressor compartment. |
| • There is a fan on the back of the refrigerator, which cools the compressor |
| compartment. If there is a small space between the refrigerator and the wall, the |
| air circulation sounds may be noticeable. |
| ■ Noise of Compressor. |
| • This operating sound happens when the compressor compresses the |
| refrigerant. The compressor rotates at 3600RPM. The sound of compressor |
| operation becomes louder as the refrigerator capacity increases. |
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"Click" sounds | ■ Explain the principles of temperature change. |
| • The sounds happens when pipes and internal evaporator in the refrigerator |
| compartment expand and contract as the temperature changes during the |
| refrigerator operation. This sound also happens during defrosting, twice a day, |
| when the ice on the evaporator melts. |
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"Clunk" sound | ■ Explain that it comes from the compressor when the refrigerator starts. |
| • When the refrigerator operates, the piston and motor in the compressor rotate |
| at 3600RPM. This sound is caused by the vibration of motor and piston when |
| they start and finish their operation. This phenomena can be compared with that |
| of cars. When the car engine ignites and starts to rotate, the loud sound |
| becomes gradually quiet. When the engine stops, it stops with vibration. |
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Vibration sound | ■ Check the sound whether it comes from the pipes vibration and friction. |
| • Insert rubber or leave a space between pipes to avoid the noise. |
| • Fix the fan blade if the noise is due to the collision of fan and shroud. |
| • Fix the drip tray if it is loosened. |
| ■ Sound depends on the installation location. |
| • Sound becomes louder if the refrigerator is installed on a wooden floor or near a |
| wooden wall. Move it to the another location. |
| • If the refrigerator is not leveled properly, a small vibration can make a loud |
| sound. Please adjust the level of the refrigerator. |
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