Mad Of Electronics

Here u can find some useful tips and links related to troubleshooting electronic appliances
Showing posts with label 50Hz. Show all posts
Showing posts with label 50Hz. Show all posts

WASHING MACHINE WATER DRAIN PROBLEM

Posted by rajascientist Monday, August 17, 2009 0 comments

Recently I came across a washing machine ,the problem was it was not draining the water after spinning. It was an Whirlpool automatic washing machine. I opened the back cover gained access to the drain hose .

Actually draining of water will be actuated by pulling the piston out.It is done by a motor gear assembly ,which pulls the string connected to the drain hose. I pulled the string manually water gushed out immediately. So the problem might be with that drain motor or with the swith which actuates this motor.


After removing the machine completely I found that the small motor gear set has been rusted by water.Some how water has entered and it spoiled everything. I took that motor set and opened its cover.

Inside it was a permanent magnet AC motor ,which runs on 220V 50Hz supply. I carefully removed all the gears and gained access to the motor. I removed that motor and connected it to 220V ,but the motor struggled to spin.

So i found out the problem , It was this faulty motor. Actually rust has developed around the stator which prevented free rotation of the motor. I cleaned and removed the rust, now again the motor spins perfectly.

I carefully assembled the gears back to its position and screwed it to the machine. Now it works perfectly. If still the problem exists , better replace the drain motor.

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