I. Fragmentation: whole machine without electricity, no light, no movement in the washing machine
(b) failure maintenance: this failure was caused mostly by damage to the internal circuit of the computer program controller (main control board), which resulted in the inability to provide working power and control signals for the entire machine。
Normally, the replacement of the same type of computer program controller will remove the malfunction。
Method of overhaul: before replacing the master plate, it is recommended that external circuit screening be carried out, with emphasis on the use of mass-use circuits to measure the conductive resistance between brown lines (usually fire lines) in power line components and brown lines inserted at the corresponding end of the computer plate — normally with a certain resistance value (i. E. Fuses, power switches and direct current resistance of the beam itself, non-infinity or zero) and, if the barrier is inexhaustible, further examination of whether the source fuse has been melted, whether the core has been cut or plugged in the power line, and these external factors also trigger a false failure of the whole machine。
Ii. Fragmentation: the post-electricity process is working, but the washing machine is not watered
Failed maintenance: this usually refers to the failure to open the water course as a result of the wiring of the hydromagnetic valve itself, the dyslexic dysentery or the fragmentation of the film。
The re-entry valves of the same type (the rated voltage and the same calibre) can be replaced to restore the flow function。
Method of overhaul: the overhaul shall first confirm that the tap has been opened and the water pressure is normal and then focus on measuring the working voltage between the ends of the valve。
Specifically, at both ends of the blue line and the grey line, at both ends of the blue line and the green white line, there should be a voltage of around ac 220v (specific visual type of power supply) during the water-entry process, or damage to the valve if the voltage is normal but the valve does not move; if the voltage is abnormal (if there is no voltage or low voltage), it is necessary to check whether the conductor component has poor contact, broken wire, or a computer plate counterpart drive-out failure。
Iii. Functions: water cannot be released after washing or drifting
(b) broken maintenance: this failure is mostly due to the breakdown of internal circuits or the loose oxidation of the end of the plug-in as a result of long-term bends and tides (widden beams connecting the computer plate to the drainage motor)。
The replacement of new lined components of the same specification is usually quick to repair。
Method of overhaul: during the overhaul, the computer program control output end (discharge drive end) is first measured for normal working voltage output。
If the output end voltage is normal and the drainage motors are not operational, it will be necessary to check whether the drainage engine itself is free of circuits or mechanical cards; if there is no voltage at the output end, the computer plate and the control signal will be checked in reverse。
In addition, the holding of alien wheels in drain pumps (or drain tractors) can cause similar phenomena that need to be addressed together。
Iv. Fragmentation: no wheel is rotated and the washing machine cannot wash
(a) maintenance of malfunctions: the most common cause of such malfunctions is the failure or failure of the capacity to activate the capacitor (run capacitor) and the resulting inability of the generator to obtain sufficient trans-starters. Replacement of the electrical capacity with the same specifications (the same electricity capacity and the same voltage resistance values) would allow the washing function to be restored。
Method of overhaul: at the time of overhaul, power was cut and the actual capacity of the capacitor was measured using a single-use spare sheet, and replacement was recommended if the deviation exceeded ±10 per cent。
If the electrical capacity is good, the normal voltage (usually ac 220v) at the end of the computer program control (e. G. Power supply) must be tested in the washing state。
If the voltage is normal but the power does not turn, the failure may be burned or insulated by the electrical circuit, or if the motor turns but the wheel does not turn, it is also necessary to check if the clutch is smooth or the belt is broken or loose。
V. Freedoms: once the dehydration process is initiated, the drums are not rotated and cannot be dried
(b) failed maintenance: this failure was mostly caused by damage to the hype tractor (also referred to as drainage tractors or the electromagnetic magnetics of the hysteria of the hype), resulting in the failure of the hype to complete the mechanical switch from washing to dehydration. The replacement of the same type of entanglement tortator will remove the malfunction。
Method of overhaul: during the overhaul, the first step is to observe the conduct of the tractor under the dehydration procedure and to tighten the wire line, focusing on the thorn of the clutch whether or not the claws have been pulled completely and, normally, the thorn claws should be removed from the vessel and the drums should be linked to the electric axle. If the thorn claws are not in place, the tractor is damaged or the itinerary is not properly regulated. In addition, some units of the machine are equipped with a security micro-switch (door cover switch), which, if the switch is in poor contact or is damaged, the computer board determines that dehydration is prohibited if the door covers are not closed and the breakage is tested together。
Vi. Fragmentation: when dehydration ends or stops, the brakes are too long and the drums cannot stop quickly
Failure maintenance: such failure is often caused by internal wear and tear or failure of brake friction blades in the brakes (including brake band components), resulting in insufficient power rectangles。
The problem is usually addressed by the replacement of speed retardors of the same size。
Method of repair: when the repairs are performed, the power supply should be shut down and the connecting arm block and the brake arm should be manually checked, the standard value should be less than 0. 8 mm, and the brake belt should be too large to hold the brake wheel effectively and the relevant parts adjusted or replaced. If the gap is normal but the brake effect is still poor, the power rectangular of the brake will need to be measured using a special tool - when the measured value is less than 7n. M, it indicates that the brake performance is no longer satisfactory and that the brakes must be replaced. At the same time, it is necessary to check whether the brake springs are rusty or resilient and whether the auxiliary brake systems are stuck。
Maintenance attention:
The power plugs must be removed and made safe before all overhaul operations. In the replacement of metaware, it is recommended that priority be given to the use of spare parts for the hale plant to ensure that electrical parameters are fully compatible with the mechanical dimensions。
For core components such as computer boards, electrical appliances and so forth, if electronic maintenance capacity is not available, professional after-sales services should be contacted in a timely manner in order to avoid the risk of malfunctioning by error。
Regular clean-up of water valve filters, drainage pump filters and detection of laxity of belts can effectively prevent most of these failures。
