感恩节快乐！请教怎么判断heater是什么毛病

感恩节快乐！   请教，我家的spa 出了问题，热水器不工作了。不知道是啥原因， 已经找了至少三个人修理，都没修好，至今都不知道啥毛病。请帮我看看。   这个spa是in ground. 热水器是2018，5 月生产，model 是 461059. 是Pentair 125.   The service heater light turned on as soon as the heater is started。   after shutting off the heater from the electric panel and then started the heater, sometimes it would work for a very short time and the service heater light turned on again and sometimes it would not work。   感谢！      

说仔细点。开关在哪里，怎么需要在配电箱上操作。

谢谢回复，我发了半天贴也发不出去。

开关就在边上。我去照一张相片，会比我说的清楚

请见下图，这个是开关

OK, I see it. Then tell me what happened.

这个是heater

还有这个，

请看问题

  The service heater light turned on as soon as the heater is started。   after shutting off the heater from the electric panel and then started the heater, sometimes it would work for a very short time and the service heater light turned on again and sometimes it would not work。        

that does not tell very much.

每当打开heater的时候，heater的service light 就亮了。heater 不制热了。

要关了heater, 再重新启动，它会工作很短的时间，然后service light 又亮了，又不制热了。

try again, still not saying much..

try many times, 几个检查人员都不知道是啥毛病。他们试了很多方法，都没发现毛病。

your words are more expensive than my time..

what is on? what do you observe? what did the repairmen say?

service light is on.

家里的SPA是什么东西？

this is the manual. go to page 33 and

谢谢，按您说的再作几遍。感谢manual.

有的房子有pool, 有的只有spa.

佛州的泳池一般都带有Spa

哈哈哈....

听你俩说的，是不是就是在泳池边上那个Hot Tub?

跟hot tub有些不一样

spa有8x8那末大