There is a high pitched buzz in the house it seems to get higher buzz later in the day. Sometimes night is very bad, It sounds "electrical". We have tried locating it by turning off and on circuits but to no avail. Also the nbn has laid its cable so not sure if it could be this as well, it started about 3am in morning woke us up, has been buzzing for about 10 weeks now.

Please anyone out there having the same problems and have solved them please let us know.

Please help

If you turn off the main breaker that turns everything off at once. Does it stop buzzing? Then return when you turn the breaker back on ?

If you turn off the main breaker that turns everything off at once. Does it stop buzzing? Then return when you turn the breaker back on ?