My heater makes a buzzing sound when u turn it on.

high pitched sound is the bearings, if its a buzzing sound and motor doesn't come on, run capacitor may be shot

Make and model?
if IID, then it's possibly the IID box, or Gray Box.
its the only component with an electric coil to a relay!
they commonly buzz.

What does this have to do with PC laptops ??? Please post in correct category.

I had the dealership install a dash panel that a lot of cars have that covers that hole underneath the glovebox where the blower motor is....sound is now gone..either that or I cant hear it anymore...bottom line is i'm happy...oh and they told me they ordered the dash panel from a forester model that fits with very little moderation...cost me 70.00 but Subaru of America split the cost due to my complaining!

Check your setting temp and sensor

it could be the gas valve buzzing ??

1. Check for loose connections at the heater coil terminals area. If everything's alright, one of your heating
elements is about to give up, and it may need to be replaced.
2. You may also check the other components, since you will be opening the HeatDish Compact Heater.
Hope this will help you.

Sounds like it could be a effiency function to warn you that the heat elements are on. Check your thermostat manual and see if you can turn this feature off. If this is not a feature then the thermostat may be wired wrong or something in the circuit may be trying to short out.

Sounds like the motor start capacitor is gone south on you. you can get them at a motor rebuilder.

sounds like a piece of frozen ice caused by the fan blowing cold air and it froze up in housing ??how cold was it ??