Unplugged computer plugged back up loud humming

Make sure that the input connection ground is good. If that does not cure the loud hum then you have a power supply issue.

The door being open so long caused warm moist air to collect and freeze inside the unit.

Take everything out, unplug it and let it thaw out for an entire day. All the frost will thaw, and probably run water all over the place so put towels down.

When you plug it back it, it should work fine.

Check the speaker cables for connectivity. Be sure to securely plug in the stereo jack/s at the back of your pc

It sounds like feedback hum. Most likely caused by the settings on your computer. Try adjusting all the sound settings. Especially record settings.

Hi,

Here is a tip that I wrote about refrigerators and the fan noisethat they develop sometimes...

RefrigeratorFan Noise
heatman101

Loud hum is usually foreign earth which could be water in telecommunications pits or other problem in exchange. To prove if phone or line is faulty-plug in another phone. If you have more than 1 phone in your property you would want to unplug them also and test from 1st socket.

hi it could be a bad neutral connection on your plug or inside on your high voltage transformer check the plug for burning and try plugging it in a different socket

check other inputs AVI, HDMI,,

do you here the hum on all inputs?

The hum maybe from a bad ground loop,, unplug all pluged in inputs, [dvd,games,radio,ect] <--check for hum.

If the hum is gone, plug inputs back in one at a time and test,,

When you find the source of the hum, go get a ground loop isolator to fix.

It is serious take the refrigerator back, get a different on. Thanks, Sea Breeze