About the general failure of the dehumidifier
1. Ventilation system failure:
1 inlet grille and outlet grille: A. Man-made damage or aging cracks; B. Ingress or out of the wind is severely blocked;
2 air filter: blocked or damaged by dust;
3 evaporator: A. Evaporator condenser fins dust; B. The surface of the evaporator freezes;
4 fan motor: A. Capacitor damage; B. Fan motor holding shaft; C. Rotor and shaft loose; D. Axis bending deformation; E. Bearing damage; F. Winding burned;
5 wind blade: A. Loose screws; B. Fan blade deformation or damage; C. The dust of the wind blade is serious, which seriously affects the air volume; D. The small dehumidifier blades also have a phenomenon of seizing the blades due to serious dust accumulation.
2. Electrical system failure:
1 compressor and fan are not turned: A. The power is cut off; B. The switch is not closed; C. Socket disconnection; D. The voltage is too low; E. The circuit breaker is disconnected; F. The fuse is blown.
2The compressor does not turn, the fan turns: A. Starter failure; B. Capacitor failure; C. Overload protection.
3 compressor and fan are running: the refrigeration system is faulty.
3. Refrigeration system failure:
1 refrigerant leakage;
2 refrigeration system blockage: A. Dirty blockage; B. Oil plug; C. Welding plug
3 excess refrigerant;
4 The compressor has no displacement (fault).
4. Compressor failure:
1 poor compression, high and low pressure chamber helium;
2 The running parts are damaged and the compressor holds the shaft.
Second, the maintenance sequence of the dehumidifier noise increase fault:
1. The ground is not flat and the dehumidifier is not placed smoothly;
2. Loose parts on the dehumidifier;
3. There is a foreign object in the dehumidifier;
4. Damage or deformation of the fan blade causes the dynamic balance to be destroyed;
5. Starter failure;
6. There is a collision between the pipelines;
7. The fan is short of oil;
8. Fan bearing failure;
9. The compressor is too noisy;
10. Filling with too much refrigerant or lubricating oil will cause liquid shock.
Third, the maintenance sequence of the dehumidifier running water to the ground:
1. The dehumidifier is placed unbalanced, and the water tank is excessively tilted, causing water to overflow;
2. The drain hole or drain pipe of the sink is blocked;
3. The water tank is damaged and leaks;
4. Leakage at the outlet of the outlet pipe or aging of the outlet pipe.
4. The troubleshooting sequence of normal operation but dehumidification effect is worse:
1. The air filter has serious dust accumulation and the airflow is blocked;
2. The air outlet attracts obstacles and the airflow is blocked;
3. The fan speed is slower;
4. The room is poorly sealed, and a large amount of outdoor humid air infiltrates;
5. The room size is too large;
6. Excessive moisture in the room;
7. More dust accumulates on the fins of the evaporator, which reduces the effect of freezing and dehumidifying;
8. Frost on the surface of the evaporator;
9. There is more oil in the evaporator, and the cooling and dehumidification effect is reduced;
10. Insufficient refrigerant charge;
11. Refrigerant leakage;
12. The capillary specifications are incorrect, the diameter of the tube is large, and the throttling is insufficient.
13. Ice blockage occurs in the refrigeration system;
14. The refrigeration system is partially blocked;
15. There is air in the refrigeration system;
16. The compressor is poorly compressed and the displacement is reduced.
5. The troubleshooting sequence of the compressor can not be started:
1. Power failure, voltage is too low;
2. The circuit fuse is blown or the switch is damaged;
3. The starting capacitor is damaged;
4. Overheat protection is not reset or faulty;
5. Various relays have not been reset or malfunctioned;
6. Motor winding is broken or burned
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