Actually, a wiper assembly that refuses to move might have a simple blown fuse. But usually fuses don't blow on their own. Even at full stall, the current draw of the motor should be well below the fuse's rating. If the fuse is blown, odds are there's something else wrong, like a shorted wiper-motor armature or faulty wiring anywhere along the harness between the motor and the switch. Even a mechanical problem like a seized bushing can make a fuse eventually fail.
The fuse is okay, or you've replaced it with one that has the appropriate amp rating. There's still no action? With the wipers and ignition on, whack the motor assembly with the handle of a screwdriver or a rubber mallet. If that gets things moving, you've got a bad commutator or an open winding on the armature. When the motor parks, if the brushes are sitting on the bad segment, no current flows. Whacking the whole business smartly can sometimes jolt things into motion. Because there are often a dozen windings on the armature, the motor runs fine until the next time it comes to rest on the bad spot.
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For many customers in the Asia Pacific region, energy-efficient products are a cost-effective lighting option, but high cost brings higher energy efficiency and performance than traditional lighting products. Therefore, in developed countries such as Japan and South Korea, customers are increasingly demanding LED products. In addition, regional and national governments have introduced a series of programs to promote the development of LED lighting, which will become the main driving force for the advancement of the LED lighting market in the next decade. According to a new report released by PikeResearch, sales of LED lighting systems will grow rapidly in the next 10 years, especially after 2015. Shipments of LED lights and fixtures will increase from 66 million in 2011 to 542 million in 2021, an increase of more than 700.
PikeResearch also found that sales of almost all other types of lighting products will decline during the same period, including incandescent lamps, T8/T5 and compact fluorescent lamps.
Senior analyst Andy Bae said: The lack of high cost and consumer awareness is still the main factor affecting the development of the LED market in the Asia Pacific region. Recently, however, the news media reported on the news of price declines. Lighting manufacturers in the Asia-Pacific region have also continuously expanded their product lineups to meet market demand.
Some countries in the Asia Pacific region have been pioneers in the energy-efficient lighting system market. Japan revealed more than 10 years ago that it will lead the development of the LED lighting industry through the 21st century lighting program, and soon introduced some LED subsidies and support programs. Taiwan has also established a next-generation light source technology development and supply strategy, and advocates to strengthen the application of LED lighting and materials production, and reduce investment in traditional semiconductor business.
At the same time, China is also vigorously developing the LED lighting market. For example, in the next decade, Shenzhen plans to install LEDs in public lighting applications, street lighting and commercial locations above 90.
PikeResearch's Asia Pacific Energy Efficient Lighting Report describes the key technologies and market trends that drive the use of LEDs and other energy efficient lighting products in the commercial, industrial and outdoor sectors of the Asia Pacific region. The report analyzes policies related to LEDs and energy-efficient lighting, market trends in major countries, technology trends, and competitive landscapes.