SERVICE MANUALModel: WS49GDB3Issue 2014-12-10Rev. FZ1412S025V3Chapter 1 General Information1-1. General GuidelinesWhen servicing, observe the original lead dress. If a short circuit is found, replace all parts which havebeen overheated or damaged by the short circuit. After servicing, see to it that all the protective devicessuch as insulation barriers, insulation papers shields are properly installed. After servicing, make thefollowing leakage current checks to prevent the customer from being exposed to shock hazards.1) Leakage Current Cold Check2) Leakage Current Hot Check3) Prevention of Electro Static Discharge (ESD) to Electrostatic Sensitive1-2. Insurance Test1. Check if there is any leak of current.2. Cut out the power supply before the repair to avoid an electrical shock hazard.3. In the case of a live-line test, insulating gloves should be worn to avoid potential electrical shock.4. Confirm the rated current, voltage and capacity before testing with any kinds of instruments.5. Watch if the upper door is open when we check something at a lower position.6. Take out every part in the cabinet before moving the machine, especially things like panels (e.g.glass shelf).7. Please wear intact cotton gloves when repair any parts of the evaporator, so that scratches bythe sharp fins can be avoided.8. If there is a breakdown with the refrigeration system, please surrender the machine to the servicecenter, else the leaked refrigerant may pollute the atmosphere.9. The refrigerator use AC of 220V with a frequency of 50Hz.10. A big fluctuation of voltage (exceed the range 220 240V) may cause a start failure of therefrigerator, a burn-out of the control panel and compressor, or an abnormal sound from thecompressor in operation.11. Take care not to damage the supply line. Don’t yank at the line; pull the plug out gently from thereceptacle. Don’t press the line under the cabinet or step on it. Take care not to roll on or damage thesupply line when moves the machine from the wall.