C720W-P1319602M Amana Microwave - Instructions

1) Important: Remove Power! (Leads to motor are live - you will get shocked)
1.5) Remove bottom cover (4 screws)
2) Slide spade terminals off motor (observe polarity / colors)
3) Remove 2 screws holding defective motor on
4) Affix metal sealing decal to mtor (prevents oil seepage)
5) Put circular spacer (small tube shaped cylinder) on new motor
6) Mount ne motor using two screws removed in #3
7) Attach Wires to motor
8) replace bottom cover (4 screws)

Get the turntable motor. Flip the microwave over. Undo the silver plate with two screws. Unscrew the old motor. Unplug the two lines from the motor. Install the new motor in reverse steps. Done. Easy

removed a dozen screws-discarded large cap-replaced diode-replaced a dozen screws(took longer to replace them than remove for some unknown reason). Microwave now works(wife happy).

There were two hard parts for me to work through.

The first was breaking off the two screws that need a special head screwdriver to remove. None of my special special head screwdrivers worked (I have a few), so I used a hammer to force them off.

The second hardest part for me was finding the correct replacement bulb on-line. My Amana Microwave is a combo Microwave/Convection type, and it's a strange little bulb - almost tube like.

Once I did find the right bulb on this PartSelect.com website it was a breeze. The part was delivered in just a couple of days (even during this Covid-19 pandemic). Once I had the replacement bulb in hand it barely took 5 minutes to install.

Thanks PartSelect!!

Had to remove unit from above stove, this step will take the longest. With unit on table cushioned with a throw rug under it . I removed the case and located the magnetron removed 3 screws, unplugged unit with a needle nose pliers, installed new unit plugged it in and checked the microwave with a cold coffee cup of water . Worked great! Heated great!

I had to unmount the over-the-range microwave oven to be able to gain access to the interior of the oven. Complicating removal (and re-installation) was the fact that there is a "pot-filler" faucet installed directly underneath the oven. In retrospect, I should've removed the faucet before doing the repair, but "c'est la vie."

After I got the microwave down, removing the case was also "interesting." I get bonus points for the fact that the previous owner must've had to replace the same diode before - and then re-assembled the microwave case incorrectly - thereby adding to the confusion (BTW, the service manual that I found online said nothing about how to remove the oven's case).

To remove the case, undo all the screws holding it on, and then rotate the case upwards from the back while also pulling the case backwards. There are crimped folds on the inside of the case that mate with the back edges of the front of the oven's chassis, and these folds have to be unclipped from the chassis in order to remove the case.

Replacing the diode itself was the easiest part of the job. The two connectors on the diode are of different types, making it impossible to install the diode with the wrong polarity.

BTW, the diode that had failed was not an OEM diode; I suspect it was a generic component that had been installed by a repairman sometime between 2004-2008 (when our home's original owners still owned the home). On the other hand, the new diode from PartSelect is an OEM part (it came packaged in a sealed Whirlpool bag).

The fact that the oven had stopped heating indicated that it was either the high-voltage diode or the magnetron that had failed. Since a replacement diode costs ~ 1/10th as much as a replacement magnetron, I figured it made sense to replace the cheaper part first. Fortunately, this fixed the problem.

One last thing: I tried testing both the old and new diodes for conductivity and polarity using my volt-ohm meter (VOM), but I was unable to get either diode to "turn on," even though my VOM is powered by a 9-v battery, and I used the 2-Mohm range setting. I guess the test voltage of my el-cheapo VOM isn't high enough to exceed the diode's threshold voltage, (even though I have successfully used this same VOM to test low-voltage diodes).

1. Order correct light bulb for unit and have it with you before removing old lightbulb.
My Microwave is built into cabinet.
2. Disconnect power (Either turn breaker off or unplug unit from wall)
3. Remove face cover on cabinet. (4 Phillips head screws)
I was able to reach in the opening in the cabinet and unplug from the wall.
4. Remove Phillip head screws holding microwave in cabinet.
5. Remove microwave from cabinet.
6. Remove Phillip head screws and torx screws holding outside cover on the back of unit and the side (1 on right side) and then remove cover.
Light bulb is on the top front right side.
7. Remove 1 philip head screw holding light bulb and unplug quick connector wires.
8. Plug quick connector into new light bulb same way it came out and place new light bulb in place and put the 1 philips head screw holding it back in place.
9. Put cover back on and all the screws. Temporary plug the unit in to test light bulb works before securing it back into cabinet.
10. Reverse order 5,4,Plug unit in wall before putting the face back on.
Done.

Watched a you tube video prior to installing new switch. Followed the video which gave me confidence i was up to the task. After removing the touch pad I found my design was not exactly like the you tube model but I found the defective switch, replaced it and put the microwave back together. Works great. Again watch the videos

Required that i remove the built in frame and mounting. Required tamper proof socket to remove housing. I removed the old bulb and simply replaced and reverse installed the cabinet.

remove 3 screws under cabinet,pan drops down giving access to turntable motor.Inside oven remove turntable and driven spur.
Remove single screw under cabinet disconnect plug from motor and replace with new motor. install in reverse order.

remove 2 screws remove motor disconnect wires = reverse procuder

After unplugging the microwave, removed four screws from underneath the front of the microwave, and lowered the panel enough to disconnect the power connector. Then, pulled off the clips providing power to the Turntable Motor. Removed panel entirely to access Turntable Motor. Unscrewed both screws holding motor in place, removed old motor, replaced new motor (realigning the turntable plastic part), reconnected everything in reverse. 10 minutes and done.

First I removed 4 screws at the bottom of the microwave that holds the cover in place. Disconnected power at the front of the microwave with the 4 pin connector. Disconnected 2 wires at the motor. Removed 2 screws and took out motor. Put in new motor, reconnected 2 power wires and then the 4 pin. Put cover on with 4 screws. DONE. Total time: 7 minutes. (I took my time at this because I like to do it right the first time.) I saved $40.00 on the motor ordering it on-line and received it in less than a week. Thank You! I cannot say it enough, Thank You! Thank You!

removed bottom panel removed old motor and replaced

Unplugged the MWO from the receptacle. Cut the access plate from under the MWO, unscrewed and removed the old motor. Unplugged the two leads from the old motor and plugged them onto the new motor, screwed the new motor in place, secured the access plate with a tek screw. VOILA, MWO again.