I have a GE Profile Convection Oven/Microwave Combo and the Microwave has absolutely no power after replacing the outer control panel.

They do have a main power fuse behind the control board.

There is often a fuse and a magnetron thermal fuse or thermostat.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.



At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

You can find links to helpful exploded view diagrams and order parts here.

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

The convection heater is control according to the temperature of the part n 3014 Thermister
Part Number: AP2025611 made by GE

So this is acting like a temperature sensor and it seem that is giving wrong indication to the control panel and switch off the heater at wrong temperature.

So you should replace the thermister.

You can find this and all a other parts of your oven in this link.

http://www.appliancepartspros.com/partsearch/model.aspx?model_id=216738&diagram_id=20027025#d20027025

It may be a bad convection heating element or just a bad thermal cutout.

If it's less than one year old, it will be fully covered under warranty and you can contract GE here to have an authorized servicer come out and fix it free.

If it's out of warranty and you or someone you know wants to check it out, I'd first suggest you take a look at the "mini-manual" hidden inside the unit (behind the control panel, hidden on the left side behind the grille, or attached to the inside of the outer cover) which is very helpful when troubleshooting, & testing.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

Otherwise, see these files: safety disassembly

Accessing some parts may require you to pull the oven from the wall and remove the cover.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

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


You can find links to helpful exploded view diagrams and part ordering help here.


I'd recommend that your bookmark this link to your favorites.

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

he is right in what he says the heating element is feed from the main control board

Hi,
Here is a tip that will help you to figure out what is wrong with yourMicrowave Oven....

Microwave Oven Basic Troubleshooting Tips

heatman101
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Most likely problem is your Smart card has fried.Its located on the removable panel that your display is attached to.If you remove the screws that open this Clock Panel (un plugged from power first) the display panel will swing down and you will see the circuit board I mention (Smart card/control board ).Look for a visible burn on this board.If you see one ,replace the board. Please Rate This !

It's pretty simple to replace the light without having to remove the oven from the wall...as long as you have an offset phillips screwdriver...

Of course, be sure to disconnect power to microwave and be sure not to touch the new halogen bulb with fingers.

STEP-BY-STEP:
First, remove upper vent panel and remove inner filter (same directions for just replacing inner carbon filter):


Then, remove inner plastic grille (2 screws) and final screw on left side of metal "air duct" - here's where you'll need the offset screw driver (and a little patience!):


Then, you can gently lift the sheet metal panel, find the light housing, squeeze and remove/replace :)



That's it...just replace bulb and reverse for reassembly. Be sure to keep track of screw locations there are various sizes/lengths used.

Doug