Hold a noncontact voltage detector against the wall switch with the switch in the on position. The presence of electricity at the switch causes the detector to beep and flash. Leave the switch in the on position and hold the detector against the outlet beneath the sink. If the detector does not sense the presence of electricity at the outlet, the switch may have failed and electricity can no longer reach the disposal motor. Have the wall switch replaced.
Modern food waste disposers are often connected to your dishwasher’s drain pipe. This connection enables your dishwasher to rid itself of any leftover food scraps or residue that it might accumulate while washing your dishes. Where the dishwasher hose and the garbage disposal connect is a common source for leaks. The leaks most often occur when hose’s clamp is not secure enough. Leaks also develop when the dishwasher hose cracks. In order to fix this type of leak, you should either replace the cracked section of hose or tighten the clamp down.
You should first find out whether only the disposal is broken, or if the power has gone out completely in the areas near your kitchen sink. Try resetting the circuit breaker that leads to the kitchen, or replacing a fuse if you have an older electrical box. If the garbage disposal makes no noises at all when you flip the switch, you might also want to check under the sink to see that it’s plugged in.
Keep anything too hard out of the disposal. The shredder will dull and become less efficient. Small hard objects can also get stuck and jam the rotating parts. Each garbage disposal has its own capacity for hard objects. The more expensive models of the same brand tend to have higher hardness capacities. The instruction manual usually specifies a list of objects to avoid. You can also gain experience with your own garbage disposal. Strong vegetable fibres can jam some garbage disposals, as well. If something may be harder than what the disposal handles, just put it in your trash can or think about setting up a worm composting bin. Some items to avoid are:
Run your garbage disposal for longer each time you use it. A mistake many people make is turning off their garbage disposal as soon as the grinding noises stop. It is better to leave the garbage disposal on (with the water running) for several seconds after the grinding noises subside, as there may still be small particles in the disposal unit which have not yet been cleared away.
With the garbage disposal shopping, I quickly learned that the big brands are Waste King and Sinkerator and that those were the two best places to start. After going over several models and two trips to two separate best buys (who, by the way, really need to amp up their customer service model) I cheated and had my mom choose one for me. Sue me. So she chose this particular brand, and wow—it works really well, I can’t believe how easy it makes ... full review
STEP 3 – Clear out the disposal to remove any bits of hard foods, bone shards or other fibrous gunk that may be preventing the grinding blades from rotating and pulverizing your discarded food. Use a tool (a pliers, wooden spoon, etc.) to do this. Putting your hand in situation where whirling blades of destruction are nearby is never a good idea. (That is what I’ve heard anyway.)
Two Aberdeen restaurateurs, Ciro Schiattarella and Michele Siciliano, were extradited to Italy for their part in the "Aberdeen Camorra". A fourth Scottish associate made history by becoming the first foreign member of the Camorra and is currently serving a jail sentence in the UK. It has been reported that he also receives a monthly salary, legal assistance and protection.[55]

Another common cause for a leaking garbage disposal is the disposal flange. A leak at the very most upper area of the garbage disposal could be the garbage disposal flange which goes through the sink. A garbage disposal flange should be sealed with Plumber’s putty and then tightened from underneath the sink. If this is not tight enough or if it has managed to come loose (which can happen) then the garbage disposal will have to be taken down so the flange can be resealed and then the garbage disposal can be rehung.

Garbage Disposal