烘干机一直让电箱跳闸是什么原因？

租客发邮件说 the clothes dryer keeps tripping the circuit breaker，这个dryer是上个月刚从HomeDepot买的新机子，Whirlpool 7-cu ft Electric Dryer。我们直接给租客使用，delivery的时候测试过挺好的。没想到才一个月就出现这种问题。请教这一般是什么原因呢？需要请电工来看吗？谢谢！

所有跟帖： 

• 超负荷，请电工 -piris1987- ♀ (0 bytes) () 07/18/2016 postreply 10:49:58

• 谢谢回复，请问piris有遇到过换breaker的情况吗？电工大概多少花费呢？ -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 11:10:33

• 有，breaker 不贵，大概$80, 但电工不知道，因您的panel 情况不清楚。找三个电工来估价就知道了。 -piris1987- ♀ (0 bytes) () 07/18/2016 postreply 11:18:59

• 太感谢了！！ -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 12:11:44

• 换20A的circuit breaker. -handyman-jz- ♂ (0 bytes) () 07/18/2016 postreply 11:37:58

• Cannot just change the circuit breaker. Could cause fire. -PtLandlord- ♂ (438 bytes) () 07/18/2016 postreply 11:46:21

• Thank you so much for your detailed guidance. It's very nice of -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 12:17:07

• you。 The dryer we have is an electric one, Do you know how to ch -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 12:22:23

• check its amperage? -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 12:22:43

• 是不是说明用15amp延长线，接到另一个接口也是没有的？谢谢！ -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 12:33:40

• 也许有短路情况. 电表测电线两极电阻先 -老生长谈- ♂ (0 bytes) () 07/18/2016 postreply 12:41:43

• 谢谢！是测烘干机的插头的两级对吗？ -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 12:43:47

• 对. 如果是0, 就是短路了. -老生长谈- ♂ (248 bytes) () 07/18/2016 postreply 13:01:45

• between the two phase, should be 7 om. very large resistance -PtLandlord- ♂ (117 bytes) () 07/18/2016 postreply 14:00:41

• 问房客用干衣机时，是否同时也用其他电器，如微波炉等才跳闸，如果是，基本肯定是超负荷，而不是breake 坏了，如果不是也有可能。 -piris1987- ♀ (0 bytes) () 07/18/2016 postreply 12:54:36

• 电干衣机一般是dedicated circuit。反复tripped短路的可能性更大。 -易木- ♂ (0 bytes) () 07/18/2016 postreply 13:02:03

• 对. 独立的. -老生长谈- ♂ (0 bytes) () 07/18/2016 postreply 13:06:06

• +1 -PtLandlord- ♂ (0 bytes) () 07/18/2016 postreply 13:50:40

• Electric dryer uses 2 phase circuit breaker. -PtLandlord- ♂ (475 bytes) () 07/18/2016 postreply 13:49:46

• Most new dryer can use 40A circuit breaker and 8AWG wire. -PtLandlord- ♂ (179 bytes) () 07/18/2016 postreply 13:53:50

• Thank you so much for providing such important and detailed info -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 14:49:24

• yeah, this is right. there should be two 50a breakers paired. -老生长谈- ♂ (0 bytes) () 07/18/2016 postreply 15:11:04

• Check the power as labeled on the dryer -MoonRiverMe- ♂ (127 bytes) () 07/18/2016 postreply 14:57:39

• The electric load is a function of the total clothing amount (we -近仁1995- ♂ (0 bytes) () 07/18/2016 postreply 16:05:35

• 同一根线上可能有冰箱等，把其它所有的电器拔掉 -Redrockmm- ♀ (0 bytes) () 07/18/2016 postreply 18:48:51

• 谢谢piris1987，handyman-jz，Ptlandlord，老生长谈，易木，MoonRiverMe，近仁1995 -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 22:49:02

• 还有Redrockmm的热心回复，我们已重装了exhaustive duct，想确保散热不是主因 -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 22:50:15

• 目前锁定主因是faulty breaker，明天请电工来换掉 -nancyunique7- ♀ (0 bytes) () 07/18/2016 postreply 22:51:20