7898VAV Magic Chef Microwave Oven Combo - Instructions

Everything was straightforward other than the tabs that the screws go through before going into the back of the oven were the wrong size and the predrilled holes were not in the right location. Had to trim the metal tabs and redrill the screw holes.

Oven sensor replacement was easy. Thermistor was installed in less than 15 minutes. After installation STILL had "F3" error message. Harness was ok, "Clock" or ECU needed to be replaced. "Computer" is obsolete, no spares available, some companies will rebuilt for $400+. Since the stove was going to the landfill I had nothing to lose by taking the "Clock" apart. It has one chip that is probably the power supply and control chip, another chip is an EEPROM with 128 bytes of storage and the last is a darlington chip that controls the relays. Cleaned up everything that looked like it needed cleaning with alcohol. When I reassembled the unit the pins for the thermistor harness felt loose, so I took it apart, again, and found cold solder joints on all four pins. It must have been there all along but plugging and unplugging the harness finally broke out the solder so I could see it. Soldered the pins back in and now it all works. It's worth a try if you're getting the "F3" message. If the relays on your stove aren't working it would be a good idea to replace the darlington chip. Good luck.

Removed the two screws holding the sensor to the rear oven wall. pulled out sensor wire. It was caught on other wires behind the oven. removed the three screws holding the 8" inspection plate in the center of the rear panel. Carefully move the insulation and reach in to grasp the back end of the sensor wire. Once free from the snag it easily pulls out with the sensor just as stated in the video. using the appropriate adaptor it was easy to re-asseble and and attach to the oven wall. Replace the rear panel with the three screws and it was done

I Lifted the oven door from the hinges and removed all the screws to get to the broken glass pane, since the oven door is in layers I taped the screws close to where they belonged, so that I could screw everything together again in the right order..
The last time this happened to me(!!) I brought the door to a repair man and hadto pay 200 dollars , I saved 150 Dollars doing it myself!

Turned off breakers to oven. Removed two screws that held oven in cabinet. Removed oven door by opening slightly and pulling up on door. Pulled oven out 1/3 of way. Took out four screws on top of control panel. Took oven light switch off by unscrewing holding ring. Removed temp knob on right by pulling. Removed start / stop knob same way.Removed glass straight out. Removed four screws that held elecrtonic clock conrtol board. Unpluged three wire plug from right side and the nine wire plug from the left side. Worked board out at and angle. Went backwards to connect and replace board, screws and door.Slid oven back in and tested oven after turning breakers back on, worked like new.

simply took off smooth surface top flipped it upsde down on a towel. unbolted the entire burner assembly. matched connections with the new burner with limit switch. replaced smooth surface top plugged it in. no problems. extremely easy fix no repair charges.

Took screws out of the back on the side the sensor was on, unplugged it & took out the two screws on the inside of the oven to release the sensor. Put new sensor in place with the two screws & used one of the adapters to plug in the new sensor. Put screws back in the back panel & turned on the oven which unfortunately is still 50 degrees low. Need a new clock with computer which is out of stock & unavailable. I was an electrician for 25 years so didn't experience any problems. It was a cheap thing to try.

Disassembled the oven door, removed broken glass, replaced with new glass and reassembled oven door. Took very little time. Online diagram on this site helped to keep everything in order and easily know what part was needed. Thanks!!!!

I took the broiler pan out of the shipping container and put it in the oven.

installed part,turned unit on-temp still cold. reset digital control, up 35 degrees, still cold. un-plugged unit,re-connect after 10 min. still cold.

switch off the range. undo the two screws & unplug the two tabs. Replace with new element, connect two tabs, screw back in place. done!
recieved my replacement part the next day after ordering

I let my husband to the work...But it was very easy. I could have done it! He removed the screws, pulled the wires off previous element. Reattached the wires to the new element and screwed the ends back in place.

First I removed the two screws that hold the element in place. I then pulled the element out aobut 3 inches and disconnected the wires.

Pulled range out from cabinet-wall to get to back side, everthing was clearly exposed tlhen. Just a matter of installing new fixture, putting back on, reconnected power source - put range back in proper place.

Seems every 5 years this bake element totally disintegrates, so we,re experienced! Pull the stove out and remove the back, remove the 2 screws that hold the element(now in 5 pieces), diconnect and discard. Place new element in and connect, replace the 2 screws holding the element in place. Replace stove back. Easy