Question about Washing Machines
Triped wall power circuit breaker (20 amp.), first test run after newly installed. The same outlet were used with Whirpool heavy load washer, and Sharp lite dryer.
Normally a tripped circuit breaker is caused either by a short circuit or an overload in that particular branch. Or in some cases, a defective breaker.
The first condition can only be determined with the use of a tester by doing a short circuit test. To do this, at 1Kx resistance setting (using either an analog or a digital tester), connect one of the test prods (either the Positive or Negative prod, it really doesn't matter in this test) to one of the two prongs (live side) of the plug. Then, using the other test prod, to the other prong of the live side of the plug. What you should be reading is any value other than 0. Should your needle (in case of an analog tester) indicates or deflects to the value of 0, or if using a digital tester shows a value of 0, then in all likelihood there is a short circuit in your unit. The only way to find this is to trace where this short is originating from (this may be a little difficult with no schematic diagram to refer to). I would however suggest starting from the power cord itself since it is the breaker that is tripping with no blown fuse.
The other condition is overloading. Considering you are already using a 20A Circuit Breaker, this should aptly suffice for the threshold specification of the unit which is 15A. The question is, are there any other appliances being operated in this particular branch circuit? If there is, I would suggest that you try disconnecting/turning off all other appliances or devices using this branch and try operating your washing machine again. If it works fine, I would have to suggest that you replace your crcuit breaker with a higher current rating. To know by how much, I suggest you use this formula, Total Wattage of all appliances connected divided by Voltage Rating equals Required Ampere Rating of your breaker. I suggest using the next avalable higher ampere rating. Say if you have a 25A requirement, use a 30A circuit breaker.
Last but not least is the possibility of a defective breaker. If none of the above is the cause of the problem, I would suggest replacing the circuit breaker with a new one.
Posted on Oct 07, 2008
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