I've just got a new 600 kva UPS. However it makes a terrible squealing noise; really loud and high pitched and piercing.
I've got it in its own cabinet, but the noise is still a problem.
The seller says that this is normal, but it's really annoying.
I've got it in its own cabinet, but the noise is still a problem.
The seller says that this is normal, but it's really annoying.