First, the maintenance sequence of the dehumidifier without dehumidification failure:
1. Ventilation system failure:
1 Intake grille and outlet grille: A. Man-made damage or aging crack; B. Ingress or outwind is severely blocked;
2 air filter: blocked or damaged by dust;
3 evaporator: A. evaporator condenser fins dust; B. evaporator surface ice;
4 fan motor: A. capacitor damage; B. fan motor holding shaft; C. rotor and shaft loose; D. shaft bending deformation; E. bearing damage; F. winding burned;
5 wind blade: A. loosening of fixing screws; B. deformation or damage of fan blades; C. serious dust accumulation in wind blades, seriously affecting air volume; D. small dehumidifier blades also have phenomenon of stuck blades due to serious dust accumulation .
2. Electrical system failure:
1Compressor and fan are not turned: A. The power is cut off; B. The switch is not closed; C. The socket is disconnected; D. The voltage is too low; E. The circuit breaker is disconnected; F. The fuse is blown.
2 compressor does not turn, 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 plug; B. oil plug; C. weld 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. The parts on the dehumidifier are loose;
3. There is foreign matter in the dehumidifier;
4. The fan blade is damaged or deformed, causing the dynamic balance to be destroyed;
5. The starter is faulty;
6. There is a collision between the pipelines;
7. The fan is short of oil;
8. Fan bearing failure;
9. The compressor noise is too large;
10. Fill with too much refrigerant or lubricating oil, causing liquid impact.
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 water tank is blocked;
3. The water tank is damaged and leaks;
4. Leakage at the outlet of the water outlet or aging of the outlet pipe.
Fourth, the decontamination effect is worse, the troubleshooting sequence:
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 becomes 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 indoor moisture;
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. Capillary specifications are incorrect, the diameter of the pipe is large, and the throttling and depressurization are insufficient;
13. Ice blockage occurs in the refrigeration system;
14. The refrigeration system is partially plugged;
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. Start capacitor damage;
4. The overheat protection is not reset or faulty;
5. Various relays are not reset or faulty;
6. The motor winding is broken or burned.
6. The heat exchanger is a key component of the dehumidifier.
The single-row heat exchanger dehumidifier is made of aluminum tube, the aluminum tube is exposed, the water droplet can not stay on the aluminum tube, and it is dripped into the water tank very quickly. Therefore, when the dehumidifier is just turned on, it is easy to cause the illusion that “the water is fast and the dehumidification is goodâ€. But as soon as the machine stopped running, the dripping quickly stopped.
The wing-biased heat exchanger dehumidifier is arranged in aluminum sheets and connected by copper tubes. The contact surface of the aluminum sheets is large, and the water droplets will start to drip when they are covered with aluminum sheets. Therefore, it is easy to cause “slow water output. The illusion, but after the shutdown, the drip will continue for a while.
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