On the domestic industrial dehumidifier dehumidifier Common Fault basic judgment is : Look, listen, touch, test, analyze.

  1, see : dehumidifier for careful observation of the various components of the work, focusing on refrigeration systems, electrical system, ventilation system in three parts, to judge whether normal.

(1) Refrigeration Systems : Observation dehumidifier refrigeration system availability crack pipe breakage, Frosting and condensation; Refrigeration pipeline between the pipeline and whether Shell collision friction, especially refrigerant pipe welding, JOINING Department any leakage, any leakage of oil Department will be (refrigeration system has a certain amount of frozen oil), can also be used to clean soft cloth, soft paper and wipe pipe welding joints connecting Department and the Department to observe any oil spill to ascertain whether there is leakage.

(2) Electrical systems : observation dehumidifier whether the electrical system Fuse Fuse, electrical wire insulation integrity intact circuit board any fracture, loose connection of any other. Special electrical connections might be good contacts, wiring screws, connectors can easily come loose causing poor contact between.

(3) ventilation systems : observation dehumidifier air filters, heat exchanger coil fins and whether excessive dust; Progressive drafts flow out drafts; Fans and fanleaf normal operation; Wind normal size, and so on.

  2, listen : electrifying Boot listening dehumidifier for compressor operation voices of normal, any unusual sound, fans running any noise, noise too big. Dehumidifier for the operation, under normal circumstances a slight vibration, noise smaller, in the following general 50DB. If the vibration and excessive noise, possible causes are :

  2) Compressor abnormal vibration. Installed base of poor foot level without resistance or prevent vibration rubber springs installed or adverse effect of preventing earthquakes, such as poor. If the internal compressor malfunction, such as broken valve, liquid hammering will be issued unusual sound.

  3, touch : dehumidifier touch with the feelings of its hot and cold sites, such as flutter, Failure to judge the nature and location. Under normal circumstances, condenser temperature is decreased gradually from top to bottom, the lower the temperature slightly higher than the ambient temperature. If not the whole condenser heat or upper slightly warm, or hot but despite the next two adjacent channel temperature difference it is not normal. Evaporator under normal circumstances, would have touched the fingers on the water surface evaporation, will stick to the cold feeling. Dryer, exit capillary under normal circumstances should have warmed flu (slightly higher than the ambient temperature. and the last paragraph of the condenser pipe basically the same temperature), If the temperature is lower than the environment or surface dewdrop and capillary condensation of the temperature difference is not normal. Compressor 200MM from the suction tube, under normal circumstances, the temperature should be almost temperature and the environment.

  4, measured : failure to accurately judge the nature and location, often with equipment, Measurement Instrumentation dehumidifier check the performance parameters and the state. As the leak detector check for the presence of refrigerant leakage; Multimeter with supply voltage measurement, Connection to the end to current and current functioning of whether it meets the requirements, computer-controlled dehumidifier for, but also the measurement of the potential control points such as whether to normal.

  5, analyze : Through the above means several checks by the results, most can only reflect some local state. Dehumidifier for between parts are inter-related and interdependent. A fault phenomena may be a variety of reasons, and the reason may have many faults. Therefore, the local factors to conduct comprehensive comparative analysis, which can comprehensively and accurately determine the nature and fault location.

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Edit by Frank at 2007/5/11 10:38:28