Hot Tub freeze alarm

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mr58vette

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Location
Minnesota
Occupation
engineer
I posted this, and the moderator Roger locked up the post to comments and directed me to another website. I'd like to know what is wrong with my post please. Doesn't seem any different than many other electrical posts on here. Thanks.
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Hi, I recently suffered a frozen spa. The 400 gallon unit was completely cracked apart from freezing. Insurance fully covered it, but I'd like to prevent recurrances with a freezer-type siren alarm in case power is lost. The freeze may or may not have happended from the tripped AGFI powering the spa with 220v ac single phase. We cannot tell if the tripped breaker was a result of, or the cause of the problem.

The problem is this: For the power out alarm to work, it must be connected to the 220v source. When I tap 110v off one side, and hook up a alarm device, the power draw creates an imbalance load to the non-tapped other side of the 220v AND TRIPS THE WHOLE AGFI. I thought of just using both sides (220v) and using a 220v-110v step down adaptor (like for travel). Theoretically balancing the load.....will that transformer also trip the upstream AGFI?"
 
I am closing this thread in accordance with forum rules. If you are not an electrician, we are not permitted to assist you in performing your own electrical installation or maintenance work.

If installing stuff is not your occupation, then we can’t help you install stuff. You would have had to agree with that rule during the process of registering on the forum.

The reason is that the forum’s owner does not want a person to get an answer to the question they asked, but not get answers to the dozens of other questions they should have asked and were unaware they needed to ask. Mike Holt, the owner of this forum doesn’t want anyone to get injured by any incidents related to electrical installations. But he also doesn’t want to be sued by the injured party’s relatives on the basis of him not telling you enough to keep you safe.
 
I will reopen this thread just long enough to add one comment. Engineers are certainly welcome to participate in this forum. I have been a member for over 20 years and have learned a great deal from the other members. Please consider staying with us. But please restrict your posts to discussions of code and technical issues, and avoid DIY questions.
 
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