电冰箱维修（Refrigerator maintenance）.docVIP

电冰箱维修（Refrigerator maintenance） Freezer maintenance 2009-04-12 14:16:03 Trouble shooting and maintenance of refrigerator First, check the basic steps of refrigerator malfunction 1. preparation before ice box maintenance First of all, to check whether the refrigerator according to the instructions requirements, the implementation of reliable grounding measures to ensure the safety of maintenance and use. Check that the electrical wiring of the refrigerator is broken, broken and short circuited. If this is the case, it should be excluded in turn. Check the insulation of the freezer, the resistance should be greater than 2 megohm insulation inspection and maintenance, otherwise should be further examined the resistance of the multimeter to R * 1 ohm file, L, N respectively, two ends of 2 received power plug of the freezer, observe the multimeter indication, normally should be the number of ohm to a few ohms. If the resistance is zero, indicating that the freezer electrical wiring has a short-circuit phenomenon, or compressor, fan, etc. may be burned, causing short circuits, should identify the cause and eliminate. If the resistance is great, or even the circuit is not clear, there is a circuit breaker, should also be further checked out. 2. basic steps of ice box maintenance When the refrigerator fails, its symptoms will be reflected in a variety of circumstances. Therefore, for a faulty freezer, do not rush to repair, it should be carefully, thoroughly, thoroughly examined, and then repaired. Generally can be divided into the following steps: a listen, two see, three touch, four analysis, five hands.. Listen 1. Listen to a variety of situation in the process of using the user to reflect and share. Listen to the press running sound is normal. After the power is switched on, the normal operation of the compressor is smooth and small, and some faults can be displayed directly through different sounds. So it is possible to judge, such as: hum...... The compressor motor fa