NOTE: This document replaces the previous text version document here: http://www.microwavecontrol.com/disassembly.txt 

DISASSEMBLING YOUR MICROWAVE OVEN
REMOVING YOUR MICROWAVE'S CONTROL PANEL ASSEMBLY FOR REPAIR SERVICE

copyright 2004+ † updated February 3, 2017
William E. Miller, AS-EET
http://www.MicrowaveControl.com

By utilizing information on this site, you agree to hold the owner harmless and blameless for any consequences arising from your decision to take apart or inspect your microwave oven. See the safety warnings linked belowbefore you proceed.

Please see my safety page here.

Please note I have a VIDEO at our Web site showing how to safely and easily remove your over the range oven's control panel assembly in under 5 minutes. See it here: http://www.MicrowaveControl.com.

Unplug the oven first, then carefully review the important safety information posted here: http://microwavecontrol.com/safety.htm

(Let me know if that page doesn't display, and I'll send it to you)

ANTI-TAMPER SCREWS

If your model has anti-tamper screws, you can remove them using using a T20H Torx type or GTXH20-100 screwdriver. If the correct tool is not available, there are several ways to remove the screws:

- Use a hammer and a small punch or similar tool to knock out the middle post of the screw, then use a standard T20 Torx bit to remove the screws. (Use safety glasses).

- Use a hacksaw or Dremel tool to cut a slot in the head of the screw, then use a flat-bladed screwdriver to remove the screws. (Use safety glasses).

- Insert a small flat-bladed screwdriver (such as a jeweler’s type) into the slot between the post and the edge, tap the screwdriver firmly with a hammer to loosen the screw, grip the screwdriver with pliers, and remove the screw.

OVER-THE-RANGE MODELS

You should not normally have to remove the oven from the wall to remove the control panel assembly.

On the R1500-series ovens, you first remove three screws from the grille/louvre assembly. One in the center and one closer to each end. Then the grille / louvre assembly lifts out. It has tabs to help align it. This will probably to other models, too.

See a drawing here:
http://031d26d.namesecurehost.com/mwc/r1500_grille.jpg

Some models have tabs at the left and right sides of the grille that should be pushed in gently to allow you to pull the louver off.

Discharging the high voltage capacitor is not necessary if the capacitor is not defective, if your oven has not been run for several hours and you do not come into contact with any wires or connectors in the high voltage section.

The control panel frame should be held in place by one screw at the top. Remove that screw, then the control panel frame with keypad and control board(s) will slip up and off the microwave chassis. On some models, you may need to lift up and rotate the control panel assembly clockwise a little to free up a little pin at the bottom of the large lower tab. This is especially true for Sharp models.

In addition to or instead of a screw, it may be held in place by a metal catch which is built-in to the chassis of the oven. The catch prevents to panel from lifting up. Bend the catch out of the way and you can lift off the control panel. When you reassemble the unit, bend the catch back in place. If it breaks, remove it and discard it, then replace it with a screw.

See photos of the catch here:
http://031d26d.namesecurehost.com/mwc/r530_series_catch_shut.jpg
http://031d26d.namesecurehost.com/mwc/r530_series_catch_open.jpg

R-1500-series ovens also have a very large tab at the bottom of the plastic control panel which latches it to the oven chassis. Be sure to carefully twist the frame to allow the tab to come out without breaking.

Carefully mark the wires going to the control panel circuit board and / or photograph them to be 100% sure they go back where they came from.

There may be 3 or more wires, and you must get them back on the proper terminal. That's why it's a good idea to mark them carefully.

Small sets of wires connecting to the circuit board often have a locking tab which must be squeezed to unlock them during their removal.

When removing wires from the black relay terminals it's best to use pliers of some kind. You want to be very gentle so you don't damage the relay or pull it out of the circuit board. They may have a locking tab that goes into a small hole on the connector tab, so if it resists your pull, check for that.

See a sample closeup photo here:
http://031d26d.namesecurehost.com/mwc/sharp_panel_close.jpg

You only need to remove the wires going from the internal area of the oven to the circuit board itself - usually two wires on the relay terminals, and a small 3-pin connector in a socket, for example.

See a sample photo here:
http://031d26d.namesecurehost.com/mwc/sharp_panel.jpg

As you pull the control panel frame assembly off of the microwave, watch out for the door open button and spring. You don't want to lose either. I usually recommend that while the oven is apart, one should reinstall all the screws where they go (not really tight though) to aid in proper reassembly.

NOTE: We would need the entire control panel assembly (everything as seen in the attached sample photo[s]) which includes the plastic control panel frame with built-in keypad, the attached circuit boards, and the display.

COUNTERTOP MODELS

If your oven is a countertop model which is built in, you will have to remove the oven from the wall to remove the control panel assembly.

Remove all of the screws from the side and back of the outer wrapper / cover of the microwave. There are usually four on the rear edges and two on the bottom of the edges on each side of the cover.

The cover then should be slid slightly backward then up from the rear and it will slide off.

You may have to pat down on the sides to loosen it first. I use firm and simultaneous open-palmed slaps on both sides near the front, then pull it up and off.

When putting it back on, be careful that the inside front edges of the cover catch properly in the slots in the chassis.

Discharging the high voltage capacitor is not really necessary if the capacitor is not defective, if your oven has not been run for several hours, and you do not come into contact with any wires or connectors in the high voltage section. But to be sure, you may discharge it according to the  instructions on this page: http://microwavecontrol.com/safety.htm

Once you have the outer cover off, carefully mark the wires going to the control panel circuit board and / or photograph them to be 100% sure they go back where they came from.

There may be 3 or more wires, and you must get them back on the proper terminal. That's why it's a good idea to mark them carefully.

When removing wires from the black relay terminals it's best to use pliers of some kind. You want to be very gentle so you don't damage the relay or pull it out of the circuit board. They may have a locking tab, so if it resists your pull, check for that.

See a sample closeup photo here:
http://031d26d.namesecurehost.com/mwc/sharp_panel_close.jpg

You only need to remove the wires going from the internal area of the oven to the circuit board itself - usually two wires on the relay terminals, and a small 3-pin connector in a socket, for example.

Now looking at the back of the control panel frame about the board behind the keypad, there will be one screw attaching the assembly to the chassis. That screw may be in the lower left corner or at the top in the middle.

In addition to or instead of a screw, it may be held in place by a metal catch which is built-in to the chassis of the oven. The catch prevents to panel from lifting up. Bend the catch out of the way and you can lift off the control panel. When you reassemble the unit, bend the catch back in place. If it breaks, remove it and discard it, then replace it with a screw.

See photos of the catch here:
http://031d26d.namesecurehost.com/mwc/r530_series_catch_shut.jpg
http://031d26d.namesecurehost.com/mwc/r530_series_catch_open.jpg

Remove that screw, then the control panel frame with keypad and control board(s) will slip up and off the microwave chassis.

See a sample photo here:
http://031d26d.namesecurehost.com/mwc/sharp_panel.jpg

As you pull the control panel frame assembly off of the microwave, watch out for the door open button and spring. You don't want to lose either. I usually recommend that while the oven is apart, one should reinstall all the screws where they go (not really tight though) to aid in proper reassembly.

NOTE: We would need the entire control panel assembly (everything as seen in the attached sample photo[s]) which includes the plastic control
panel frame with built-in keypad, the attached circuit boards, and the display.

If you need to order parts for most any brand, see my part ordering information page here: http://www.microwavecontrol.com/parts.htm.

ORDERING MICROWAVE OVEN PARTS

See my parts page at http://microwavecontrol.com/parts.htm.

MORE QUESTIONS?

Please visit my Web site and e-mail me. It's best to e-mail instead of calling, because that way I can e-mail you pictures, links, and files as needed.

See http://www.MicrowaveControl.com.

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