Question about GE JVM1490 Convection/Microwave Oven

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Vent fan noise

When pushing the surface vent fan button on the keyboard the fan makes a squealing noise. Microwave fan works noise free.

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  • stev zae Nov 12, 2006

    Thx so much for all the info, I will look into all the options, thx



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I'd say the bearings are getting dry. I'd hit it with a a drop of 3-in-1 oil or sewing machine oil. If you don't have the owner's manual, you can download one here: It's also possible that the keeper which holds the fan blade assembly may be broken or loose. That could cause the fan to slip and rub. Either way it will have to be disassembled to a degree, probably starting with removal of the grille. Exploded views of this model may be helpful. They can be found at this site: Under 1 select "Repair Part", under 2 select "Microwave" and click "Go". A window will pop up and you'll enter your (complete) model number. Good luck.

Posted on Nov 07, 2006


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Fee free to e-mail me at with your full model number as shown on the tag in or on the oven, and your detailed symptoms for free advice.

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My Sharp carousal microwave model R 1482 goes on and off on its own. When cooking the steam from boiling water will set the micro off like I am pushing buttons on it.

If it's just the hood vent exhaust fan coming on, that's normal due to a temperature sensor (the hood vent exhaust TCO / thermostat).

If other functions on the microwave are coming on, then the keypad and / or controls may be shorting due to moisture and / or heat, and that needs to be addressed.

You should always run the microwave oven's hood vent exhaust fan whenever you're cooking on the stove top.

If you do, and the trouble persists, I would suspect the controls.

The service manual is at our site and we have uploaded it here to help you.

You can order any needed parts from the Sears Parts Direct Web siteimage-4235112-10659157 or Encompass here or you can call them toll-free at 866-779-5835.

Let us know if we can help you further.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

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Does the exhaunst fan turn on automatically when we cook or warm food items in our Samsung Microwave -- SMH 9187W?

Some interesting reading on page 8 of the owner's manual:

"Boilovers cause smoking and greasy spillovers that may ignite and spread if the vent fan is operating.To minimize automatic fan operation, use adequate sized cookware and use high heat on surface units only when necessary."

And on page 20:

"If the temperature becomes too hot around the microwave oven, the fan in the vent hood will automatically turn on at the LEVEL 2 setting to cool the oven. The fan will automatically turn off when the oven has cooled down sufficiently. This is an automated process and cannot be turned off. The fan may stay on for 30 minutes or more after the cooktop and microwave controls are turned off. The Vent Fan will only operate in 1~4 levels modes while the microwave is working."

"Using the Vent delay off button
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2. Press the Delay Off button twice to turn the fan off after 3 minutes.
3. Press the Delay Off button three times to turn the fan off after 5 minutes.
4. Press the Delay Off button fiour times to turn the fan off after 10 minutes.
5. Press the Delay Off button five times to turn the fan off after 30 minutes."

If for some reason you don't have your owner's manual, you can still download it free here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer

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We see (and repair) this a lot. The problem is on the control panel, which we regularly repair nationwide by mail for $39.95 postpaid in about a week or so.

This light failure often occurs when a bulb goes out and the filament shorts, or when the bulbs are removed or installed without first unplugging the oven from the power line. Either can cause such a failure on the controller.

This can often also affect the exhaust fan, cooling fan, turntable, and/or inside light operation, too.

Details of our service are at our Web site, along with a video showing how to remove a typical over the range control panel assembly in under 5 minutes.

Feel free to contact me directly with your brand, full model number and symptoms.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller

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