|21-09-2019م, 03:57 PM||#1|
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Al Barsha South First Dubai Washing Machine Repair
Over time manufacturers of automatic washers have gone to great lengths to reduce cost. For instance, expensive gearboxes are no longer required, since motor speed can be controlled electronically. Some models can be controlled via WiFi.
Even on some expensive washers, the outer drum of front loading machines is often (but not always) made of plastic (it can also be made out of metal but this is expensive). This makes changing the main bearings difficult, as the plastic drum usually cannot be separated into two halves to enable the inner drum to be removed to gain access to the bearing.
Some manufacturers have taken steps to reduce vibration emanating from their washers, by means of reducing or controlling motor speeds, using hydraulic suspensions instead of spring suspensions, and having freely moving steel balls contained inside a ring mounted on both the front and back sides of the drum in order to counter the weight of the clothes and reduce vibration.
Some machines, since 1998 now use a direct drive motor, a low aspect ratio device, where the stator assembly is attached to the rear of the outer drum, whilst the co-axial rotor is mounted on the shaft of the inner drum. Direct drive eliminates the need for a pulley, belt and belt tensioner. It was invented by LG Electronics in 1998 and patents were granted in the US in 2010. Since, other manufacturers have followed suit. Some washing machines with this type of motor come with 10 or even 20 year warranties, but only for the motor itself. The direct drive motor's rotor is outside the stator as this provides a slim motor with speed reduction and torque multiplication. The rotor is connected to the inner tub through its center. It can be made out of metal or plastic.
The modern washing machine market is burgeoning innovations and features. For example:
Some other washing machines include water jets (also known as water sprays and water showers) and steam nozzles that claim to sanitize clothes and help reduce washing times and remove soil from the clothes.Water jets get their water from the bottom of the drum, thus recirculating the water in the washer.
Others have special drums with holes that will fill with water from the bottom of the tub and redeposit the water on top of the clothes. Some drums have elements with the shape of waves, pyramids, hexagons or diamonds.
Some include titanium or ceramic heating elements that claim to eliminate calcium build up in the element.They can heat water up to 95 °C.
Others have soap dispensers where the user just fills a tank with detergent and softener and the washing machine automatically doses the detergent and softener and sometimes picks the most appropriate wash cycle. In some models, the tanks come pre filled and are installed and replaced with new tanks, also pre filled or refilled by the user, in a dedicated compartment on the bottom of the machine.
Some have support for single use capsules containing enough laundry additives for one load. The capsules are installed in the detergent compartment.
Many dilute the detergent before it comes in contact with the clothes,some by means of mixing the soap and water with air to make foam,which is then introduced into the drum. Al Barsha South First Dubai Washing Machine Repair
Some have pulsators that are mounted on a plate on the bottom of the drum instead of an agitator. The plate spins, and the pulsators generate waves that help shake the soil out of the clothes. Many also include mechanisms to prevent or remove undissolved detergent residue on the detergent dispenser.
Some manufacturers like LG Electronics and Samsung Electronics have introduced functions on their washers that allow users to troubleshoot common problems with their washers without having to contact technical support. LG's approach involves a phone receiving signals through sound tones, while Samsung's approach involves having the user take a photo of the washer's time display with his or her phone. In both methods, the problem and steps to resolve it are displayed on the phone itself. Some models are also NFC enabled.
In the early 1990s, upmarket machines incorporated microcontrollers for the timing process. These proved reliable and cost-effective, so many cheaper machines now also incorporate microcontrollers rather than electromechanical timers. Since the 2010s, some machines have touch panel displays, full color or color displays, or touch sensitive control panels. Jebel Ali Industrial Dubai Washing Machine Repair
In 1994, Staber Industries released the System 2000 washing machine, which is the only top-loading, horizontal-axis washer to be manufactured in the United States. The hexagonal tub spins like a front-loading machine, using only about one third as much water as conventional top-loaders. This factor has led to an Energy Star rating for its high efficiency. This type of horizontal axis washer and dryer (with a circular drum) is often used in Europe, where space is limited, as they can be as thin as 40 cm in width.
In 1998, New Zealand-based company Fisher & Paykel introduced its SmartDrive washing machine line in the US. This washing machine uses a computer-controlled system to determine certain factors such as load size and automatically adjusts the wash cycle to match. It also used a mixed system of washing, first with the "Eco-Active" wash, using a low level of recirculated water being sprayed on the load followed by a more traditional style wash. The SmartDrive also included direct drive brushless DC electric motor, which simplified the bowl and agitator drive by doing away with the need for a gearbox system.
In 2000, the British inventor James Dyson launched the CR01 ContraRotator, a type of washing machine with two cylinders rotating in opposite directions. It was claimed that this design reduced the wash time and produced cleaner washing than a single cylinder machine. In 2004 there was the launch of the CR02, which was the first washing machine to gain the British Allergy Foundation Seal of Approval. However, neither of the ContraRotator machines are now in production as they were too expensive to manufacture. Al Qusais Third Dubai washing machine repair
In 2001, Whirlpool Corporation introduced the Calypso, the first vertical-axis high efficiency washing machine to be top-loading. A washplate in the bottom of the tub nutated (a special wobbling motion) to bounce, shake, and toss the laundry around. Simultaneously, water containing detergent was sprayed on to the laundry. The machine proved to be good at cleaning, but gained a bad reputation due to frequent breakdowns and destruction of laundry. The washer was recalled with a class-action lawsuit and pulled off the market.
A Beko washing machine, modern household washing machines start at 1 kg (2 lb) capacity, ideal for smaller households and spans to 24 kg (53 lb) load capacity
In 2003, Maytag introduced their top-loading Neptune washer. Instead of an agitator, the machine had two washplates, perpendicular to each other and at a 45 degree angle from the bottom of the tub. The machine would fill with only a small amount of water and the two washplates would tumble the load within it, mimicking the action of a front-loading washer in a vertical axis design.
In 2006, Sanyo introduced the "world-first" (as of February 2, 2006, with regards to home use drum-type washer/dryer) drum type washing machine with "Air Wash" function (i.e.: using ozone as disinfectant). It also reused and disinfected rinse water.This washing machine uses only 50 L (11.0 imp gal; 13.2 US gal) of water in the recycle mode.
In 2008, the University of Leeds created a concept washing machine that uses only a cup (less than 300 ml) of water and 20 kg of re-usable plastic beads to carry out a full wash. The machine leaves clothes virtually dry, and uses less than 2 % of the water and energy otherwise used by a conventional machine. As such, it could save billions of liters of water each year. The concept is being developed as the Xeros Washing Machine.
Approximately in 2012, eco indicators were introduced, capable of predicting the energy demand based on the customer settings in terms of program and temperature.
Features available in most modern consumer washing machines:
Delayed execution: a timer to delay the start of the laundry cycle
Predefined programs for different laundry types
Rotation speed settings
Variable temperatures, including cold wash
Additionally some of the modern machines feature:
Time remaining indication
Around 2015 and 2017, some manufacturers(namely Samsung and LG Electronics) offered washers and dryers that either have a top loading washer and dryer built on top of a front loading washer and dryer respectively (in Samsung washers and dryers) or offer users an optional top loading washer that can be installed under a washer or dryer (for LG washers and dryers) Both manufacturers have also introduced front loading washers allowing users to add items after a wash cycle has started, and Samsung has also introduced top loading washers with a built in sink and a detergent dispenser that claims to leave no residue on the dispenser itself. In IFA 2017, Samsung released the QDrive, a front loading washer similar to the Dyson ContraRotator but instead of 2 counterrotating drums, the QDrive has a single drum with a counterrotating impeller mounted on the back of the drum. Samsung claims this technique reduces cycle times by half and energy consumption by 20%.
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