Dehumidifier maintenance | common faults of dehumidifier maintenance | correct maintenance methods of dehumidifier

Dehumidifier is a necessary household appliance in many humid environments. In some places, it often rains continuously for several days in the rainy season, and the home is particularly humid.

If we do not use the dehumidifier, we will get sick for a long time. When we use the dehumidifier, we may damage the dehumidifier because of our operation or not paying attention to cleaning and maintenance at ordinary times.

1. After the dehumidifier is repaired, it is powered on and started. It is found that the noise increases and the dehumidification effect is poor. Check the fault:

a. Check that the dehumidifier structure is normal and placed stably.

b. The evaporator has no abnormal shape and frosting.

c. Check that the noise mainly comes from the compressor.

d. There is much frost on the air return pipe, so it is judged that the refrigerant charge is excessive.

e. Maintenance method: properly discharge some refrigerant before starting the machine, and the dehumidifier returns to normal;

2. After using the dehumidifier for two years, the dehumidifier was repaired because it was blocked by dirt and could not be dehumidified. After reuse, the compressor and fan also operated normally, but did not dehumidify. Check the fault:

a. The air filter screen and evaporator surface are clean.

b. The working current of the compressor is different from that of the last fault. The working current of the last fault is very large, but this time it is very small. It is judged that the refrigerant is seriously leaking.

c. Maintenance method: add refrigerant.

3. The low-pressure pipe surface of the dehumidifier is frosted, and the dehumidification effect becomes worse. Check the fault:

a. The rear section of the capillary tube is frosted, and oil stains are found at the interface with the low-pressure pipe. It is judged that the fault is leakage;

b. The front section of the capillary tube began to frost, and no oil was found in the pipeline, so it was judged that the filter was blocked.

c. Maintenance method: pressurize for leak detection and charge refrigerant; Replace the filter.

1. Regularly clean the dehumidifier: regularly remove the filter screen of the dehumidifier for cleaning, which can effectively improve the dust removal effect of the dehumidifier and improve the ambient air quality.

    Regular cleaning of the heat sink of the outdoor unit can effectively improve its heat exchange coefficient and heat exchange efficiency, and improve the working efficiency of the dehumidifier.

2. If the dehumidifier is not used for a long time, protective measures shall be taken. When the dehumidifier is not used for a long time in winter or outside, the dehumidifier shall be covered with a protective cover to avoid the sun, rain and dust deposition, which will cause difficulties in future cleaning and maintenance.