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Old 06-21-2015, 08:36 PM   #1
Junior Member
Join Date: Aug 2014
Posts: 5
Aqua hot/buzzing light switch panel

When I turned on the overhead lights in the vanity, a loud buzzing noise started today. We followed the noise and it sounds like it is coming from the electrical panel in the Aqua Hot bay which is directly below the vanity. making it stranger is the fact that when the diesel burner is turned on for the Aqua Hot the light by the diesel burner switch indicating it is on appears very dim. Anyone have any thoughts? House batteries?

Much appreciated. Thanks. Sandra

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Old 06-21-2015, 09:05 PM   #2
Join Date: Dec 2014
Posts: 51
I have an AquaHot 400D in my 2015 Tuscany that had three different wiring problems straight from the factory. Two of the problems had to do with the 12v portion and consisted of wires being installed backwards. There was no safety issue with the messed up wiring but there was a performance issue due to the switches being incorrectly wired. The third issue was definitely a safety issue. Thor ran a 14/2 piece of romex through some flex conduit to connect the heater to a 120v source. The romex was either not torqued properly to the bus bar or became loose from movement while driving which caused the connection to overheat and short out the bus bar. You might have the connections checked if you're hearing a buzzing sound coming from the heater. Just a thought.
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Old 06-23-2015, 07:28 AM   #3
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Join Date: Dec 2010
Location: Kamloops, BC. Canada
Posts: 925
Check your ground wire.
It may be loose. A big culprit.
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light, panel

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