JVM1790 Microwave GE-Draws air from bottom and top vents
The microwave is suppose to be set for vertical duct but air is pulled from bottom two vents (very weakly) and more strongly from vent bar over door. Am I wrong in assuming that the major draw should come from the bottom of the microwave vent? If it is suppose to draw from bottom, how do I correct problem?
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Re: JVM1790 Microwave GE-Draws air from bottom and top...
1. You have to have exhaust pipe to connect m/w vent and this pipe has to be free from obstruction.
2. If it alreadyconnected and good, but air come from vent bar over door, then blow motor on top of the m/w was installed in wrong position ( motor has 2 -3 position depends which way air coming out up, back or front).
3. In this case you have to remove m/w from installation and change motor position.
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Remove a GE Spacemaker
The GE Spacemaker series of microwave ovens are designed to be installed above an oven range, freeing up counter space in your kitchen. Some of these Spacemaker models are connected to an outside venting system to carry kitchen vapor and odors outside. Other Spacemaker models utilize a ductless system to do this. Removing a GE Spacemaker microwave oven isn't a difficult task, but, because of the size of some of the oven models, it is a two-man operation. Have a question? Get an answer from an appliance repair specialist now!
Open the cabinet above where the Spacemaker microwave oven is installed. If you see a vent in the cabinet leading to the Spacemaker oven below, your Spacemaker is vented. This vent needs to be disconnected before continuing with removal. Disconnect the vent either by loosening the duct clamps or by cutting the duct tape away with a sharp knife. Pull the vent out of the top of the oven.
Have an assistant support the oven from below. Loosen the mounting screws connected to the Spacemaker through the cabinet bottom. Loosen the screws by turning counterclockwise with the Phillips screwdriver.
Unplug the Spacemaker from the socket in the cabinet.
Continue loosening the screws while your assistant holds the oven in place. Once the screws are removed, have your assistant slowly lower the Spacemaker down by lowering the front face at a 45-degree angle.
Feed the power cable for the Spacemaker through the hole in the bottom in the supporting cabinet.
Help your assistant slowly pull the Spacemaker forward and out of the mounting brackets on the rear wall. Once the Spacemaker is cleared of the mounting cabinet and rear wall, set it down.
Remove the mounting bracket from the rear wall by loosening the screws.
some microwaves vent to the exterior. check outside for a vent. If it is a recirculating model, perhaps the filters are plugged, the vent pathway is blocked (packaging material) or a loose panel at the back so that the exhaust fan air is leaking out somewhere else. I don't know what else it could be unless the fan is loose on the motor shaft and the fan motor is running but the fan blades are not moving air.
1. Unplug Oven 2. Unscrew 2 screws on top front of oven 3. Pull of front vent (might need a little force the first time but not to much or you will crack plastic) 4. Unscrew screw facing you near the front that is attached to metal plate on bottom of opening behind the vent. 5. Pull out metal plate (box) carefully not to damage any wires. 6.Bulb is in this metal box, pull out old one and press the new one's prongs into holes (be careful and gentle the bulb breaks easily, don't try to pull it back out to see if it's all the way in or you will most likely pull a prong out of the bulb) just firmly press bulb into place. 6. Screw metal plate back in place. 7. Plug in oven and test bulb. 8. Unplug oven again and put vent back on with the 2 screws. 9. Plug in, set clock and your done.
The first time I opened it up was to look for the bulb. The vent needed a little pulling to come off. The second time (to put in new bulb) it came off easier and whole thing took about 5 minutes. Hope this helps. Just in case: I am not a professional nor claim to be. This is based on my own experience. Yours may differ. Unless you feel totally comfortable you should contact a licensed electrician or an authorized service agent.
Most Microwaves arrive ready to vent back into the room. For filtered air returned to the room it should face toward the front. For top vent, point to the top. for rear wall vent point toward the back.
The light bulb is behind the air vent at the center top of the microwave. Remove two screws at the very top front of the microwave and pull the vent cover forward at the top. Sliding left is sometimes necessary to release the bottom tabs of the vent cover. The light fixture will be behind this cover.
Good Luck. Reverse the above process to reassemble.
Under cabinet microwaves generally have two configurations for venting. 1) There is a vent cover plate on the top or rear (sometimes both) of the unit that can be removed and connected to a duct that vents up to the roof. If you do not have such a duct installed then that cover plate should be left on the unit so that it vents in configuration 2. 2) With the external venting ports sealed with the cover plate(s) the microwave simple draws air from the bottom (usually through 1 or 2 grease capture screens) and vents it out thought the front/top of the unit. This configuration isn't very useful as it just blows the air back into the kitchen. Many people don't both using the microwaves blower in this configuration.