ACO1840AB - Instructions

The clip end is @ 1"; the slot is @ 1/2". There are two raised pieces on the clip each @ 1/4" in. I used a metal snip to cut the oter 1/4" off each end-this allows the clip to be inserted into the slot and hold.

I verified I had 120 volts going into transformer when the microwave was supposed to be running. The capacitor and HV diode both tested good. Be sure to discharge the capacitor before working in this area. This isolated trouble to either the transformer or magnetron. The windings of the transformer measured good. So ordered a magnetron. It was very easy to swap. There were 4 screws and one connector. This fixed our microwave.

Used a Motor cycle Jack to remove both unites combined. Removed side panels exposing internal working parts. Removed nonworking Magnetron and replaced it with new Magnetron. The process was completed in about 1 hour.

Unscrewed glass panel, removed old bulb, cleaned glass panel and installed new bulb. Screwed panel back into place.

I was able to find the part on line and within a few days received the part and installed it with no problems thanks to the website drawing information.

It was not the magnitude of the repair but the fact I ordered the part on a thursday and it was delivered on saturday. Timing ws very important, especially this time of year.

using the measurements shown in parts catalog, it appeared the item I needed was correct for what I ordered.

Removed one screw lowered glass cover removed burned out bulb replaced with new one put glass back reinstalled screw. Dune 5 minutes back in business

replaced plate

remove the part from the box and wipe it down with warm soapy water, rinse and dry and place in microwave.

I UNPLUGGED the microwave and removed the cover, using a phillips and a Torx screwdriver for the machine screws. I set these screws aside, so as not to confuse them with the later encountered screws. I photographed the magnetron to assure proper placement of the 6 phillips machine screws involved in reassembly (marking the the locations on the old magnetron would do as well. I marked the old magnetron "old", to avoid later confusion. I removed the two screws holding the shields to the magnetron. I removed 3 of the 4 screws holding the magnetron to the microwave, leaving one of the top screws. I held the magnetron securely and removed the last screw, pulling out a the part of the magnetron that penetrated the microwave. I installed the new magnetron in reverse order. One problem I encountered was locating one of the six screws, which had been pulled into the old magnetron by magnetism.

Open compartment, installed bulb, closed compartment

After reading on-line about other Amana microwaves, that said the arching was probablly due to dirt or grease & I knew it wasn't dirty, I decided to try the sandpaper recommended to clean the carbon from the wall where the shelf holder had burned several years ago. This caused the remainder of the clip to become loose. I then took a sharp knife & popped the clip out which left a neat square hole which your shelf holder popped right into. The filters were an afterthought because I didn't want to pay shipping for only a $2 item

Replaced with new covers.

First let me say that I tried several places to get what I thought was a simple light bulb. This included several national hardware stores as well as a national electrical supply company. No luck. Went to the manual and PartSelect. Not only did you have it in stock, ship right away,at a reasonable price it arrived in a matter of days. One would not normally think of receiving a "how to" video to change a light bulb but you did. That impressed me. Suffice to say the replacement went well and you can be certain the next time I need a part I will go to you first. I am also impressed with the organizations with which you are affiliated with. BBB, Norton, PayPal, money back guarantee etc. Thank You The entire process was made pleasant with your support.