Filter placement how to install charcoal filter for jvm1790skc don't know how to change the carbon filter

Hi,

Open the door and take off the upper side barre. and you are in bussnis

This is billed as the Use & Care Manual for the Frigidaire FMV156DC Microwave Oven:

ftp://ftp.electrolux-na.com/ProdInfo_PDF/Springfield/316495004en.pdf

Not sure it is the correct one but you will find instruction for cleaning the exhaust filters on page 19.

Below is the Use & Care Manual for a model direct from the Frigidaire site:

http://manuals.frigidaire.com/prodinfo_pdf/Springfield/316495057en.pdf

This is more helpful as on page 20 it includes illustrated instructions for removing the charcoal filter to change the oven light. Disconnect from power, remove the ventilation grate at the top to access the charcoal filter, slide back and lift to remove. With the grate removed carry out any required cleaning.

Grease filters change from the bottom side of the unit.

Charcoal filter is changed as follows:
To Remove Charcoal Filter
To remove the charcoal filter, disconnect power
at the main fuse or circuit breaker panel or
pull the plug.
Remove the top grille by removing the screws
that hold it in place and sliding the grille to the
left (opening the door makes grille removal
easier). Slide the filter towards the front of the
oven and remove it.
To Install Charcoal Filter
To install a new filter, remove plastic and other
outer wrapping from the new filter.
Insert the filter into the top opening of the oven as
shown. It will rest at an angle on 2 side support tabs
and in front of the right rear tab. Replace the grille
and screws.

The grease filter is changed from the bottom of the unit.

The charcoal filter is changed as follows:

To Remove Charcoal Filter
To remove the charcoal filter, disconnect power
at the main fuse or circuit breaker panel or
pull the plug.
Remove the top grille by removing the screws
that hold it in place and sliding the grille to the
left (opening the door makes grille removal
easier). Slide the filter towards the front of the
oven and remove it.
To Install Charcoal Filter
To install a new filter, remove plastic and other
outer wrapping from the new filter.
Insert the filter into the top opening of the oven as
shown. It will rest at an angle on 2 side support tabs
and in front of the right rear tab. Replace the grille
and screws.

It's Part No. WB06X10359.

There is no charcoal filter unless you replaced the standard filter with a carcoal filter. Also, it may have m=been changed to a charcoal filter if the unit was alterd during installation as a re-circulating vent, not vented to the outside via the roof or wall.

The filter (Charcoal or not) is on the bottom of the unit. Put your head under the microwave and look up, there it is.

I also have a Sharp over the Range Microwave oven that requires a charcoal filter. But my diagram shows that the charcoal filter goes behind the slotted panel at the top of the microwave. To reach the filter, you must remove a screw on the top edge of the microwave. This allows the panel to come off. Your charcoal filter goes there. Since your oven is new, you do not need to change this filter yet because it's not dirty. I would save it for future use.
According to my book, there are two kinds of filters with this oven. The charcoal filter is the one behind the front panel. The Grease filters ARE the two metal mesh ones. They can be cleaned with hot soapy water, or I put mine in the dishwasher.

The charcoal filter needs to be changed every 6-12 months, or sooner if it gets clogged.

You can download GE owner's manuals and installation instructions here.

You can find helpful exploded view diagrams and order parts (including charcoal filters) by entering your full model number from the tag on the oven here.

You mean NNS254? You can download your owner's manual here.

On page 4, it says, "If this appliance is to be vented inside the kitchen, be sure the charcoal filter kit is installed in the unit before you operate."

Also, on page 28, "The Charcoal Filter cannot be cleaned and should be replaced periodically every 6 to 12 months, or more often if necessary."

So the answer is "yes".

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

External vent systems have the charcoal filter removed, generally at the time of installation, as it is not needed for this application.
The charcoal filter removes odors from internal recycled airflow.
There should be an aluminum grease filter that you can remove to clean in a warm soapy solution, let dry, and reinstall.