SOURCE: cold air from outside coming in house through vent
Sounds like your damper (flap) outside is working, and that's probably the first thing to check. Wind may be also pulling the damper open from time to time. Hopefully the pipe fitting is sealed, and the pipe is insulated anywhere it runs through any unheated portion of the house. Some amount of cold air getting in will be unavoidable. The best bet next might be to look over the two pages in the installation instructions that deal with outside venting. If you don't have the installation instructions, you can get a copy here: http://www.geappliances.com/service_and_support/literature/ Then if you don't notice any obvious problems with the installation, it may be time to contact the installer for their two cents.
SOURCE: GE EMO300SS microwave
Yes this can be done. The unit will need to be taken down and the vent fan will need to be reversed.
SOURCE: Outside venting GE Profile Spacemaker XL1800
Your vent flap could be taped or it could be faulty installation not allowing the vent to open. If you take the front vent cover off, you should be able to reach in above the fan unit and gently push the vent flap up, it should move freely with no binding. If it doesn't it is taped or blocked. If it is taped, gently putting upward pressure on the flap might release the tape. If that doesn't work the vent installation is blocking the flap. You might have to remove the unit from the wall (two people to do this) or disassemble the vent duct above the microwave and rework the interface for clearance.
hope this helps,
SOURCE: Crackling sound in microwave vent when power is off
By "powered off" can I assume you mean that it is plugged in and at idle, not cooking, just showing the clock?
If so, I'd say your control board is failing.
If my assumption is wrong, please write back with more details.
We regularly repair these control units for
customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.
Feel free to contact me directly (and please remind me of your model number) for more information & help.
We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.
William E. Miller
[email protected]
http://www.microwavedisplay.com
SOURCE: I aquired GE profile OTR microwave, This model
You can download GE
owner's manuals and installation instructions here.
These will help you with the hookup.
You can find
helpful exploded view diagrams and order parts by entering your full
model number from the tag on the oven here.
We're
happy to help you with free advice and we'd appreciate your
thoughtful rating of our answer.
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