CER3520AGW Magic Chef Range - Instructions

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 "Computer" is obsolete, no spares available, some companies will rebuilt for $400+.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 old socket and replaced.
I was VERY pleased with Partselect. Easy to find part, it was in stock and fast delivery.

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

-Disconnected power from oven at the circuit breaker.
-Removed oven door and racks.
-Removed two screws holding element to the rear wall.
-Carefully pulled element away from rear wall, exposing wire leads.
-Carefully detached wire leads with male Sta-Kon connectors from element ends. (Taking care not to break or weaken the wires at the connector.)
-Disposed of old element and placed new element in same position.
-Re-attached leads by very carefully sliding male Sta-Kon connectors into the new element connectors, taking care not to push too hard and bend element wire.
-Gently re-inserted element ends into wall and re-attached element to wall with original screws.
-Reconnected power and tested new element. Element did not heat.
-Disconnected power and looked for collateral damage from original element failure.
-Removed oven from wall, removed rear panel and identified the high-temperature limit switch.
-Removed Sta-Kon leads and checked switch for electrical continuity. It had none, apparently the result of the high current from original element short.
-Obtained new hi-limit switch from Part Select
-Removed and replaced hi-limit switch, re-attached leads.
-Replaced rear panel and reinserted oven in wall.
-Reconnected power and tested new element. Element heated normally.
-Returned racks to oven, re-attached door and 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!

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.

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.

* Do not lose the supplied CERAMIC electric connecting nuts; they will not fry in the heat.

* Unplug the heating elements from the old receptacles, and remove any rings; unplug the cartridge by lifting up the back side and pulling gently toward the back of the stovetop.

* Unscrew the cartridge top from the cartridge base (about 12 screws) and the recepticals, and cut the old wire close to the old receptacle.

* If you have a spare magnetic thingy around, use it to hold the screws and not lose them.

* Screw in the new receptacles, route the newer wiring from the receptacles (use as much of the new wire as possible), back toward the wiring block on the cartridge plug.

* Recut the old wiring to accomodate the length of the new wiring, but leave at least 2-3" from the wiring block, if possible. Re-connect them using only the supplied CERAMIC electric nuts.

* The CERAMIC nuts allayed my fears about the effect of heat on a plastic nut; ceramic is designed for high-heat environments.

* Reverse the disassembly steps to reassemble and reinstall the cartridge.

An easy replacement job.

Service from you was prompt and the replacement parts arrived in perfect condition...thanks

I had the part overnighted since Thanksgiving was in two days and we needed to be able to use the oven. I saw a video on the website that instructed how to unplug the stove. Unscrew the baking element from the inside of back wall of oven. Gently pull out the part to where it is attached to wires. Simply pull apart the male part from female parts. Replace the old element with new element and attach it to the pulled out wires. Then gently push back wires inside the back wall of oven. Screw the attachment back in. We then plugged the oven back in. Turned on the oven to about 300 degrees. We put an oven temperature gauge inside and after a time the oven temperature was at 300 degrees and steady. It was fixed. Thanksgiving was on!

the hardest part of this repair was the wait for the element to arrive in the mail - which was in 4 business days - then took 5 to 10 minutes to get to circuit breaker box in garage. That was the longest part of the repair. My husband took the door off the oven after turning the circuit off in the garage. Followed directions from others who made the same repair and it was done in 2 minutes! Super easy - thanks for saving us money during this time of tight budgeting around the holidays! You're a lifesaver!

First I turned the power off to the oven using the breaker switch. Removed the old bake element by first unscrewing the 2 screws for each bracket holding each side of the old bake element and unplugging the two current connections.

Replugged and rescrewed above. Turned breaker on for oven. Tested by turning oven to back and watching new bake element heat up.

Lift burners out of plug discard old drip pans replace new drip pans into plugs and done .

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!!!!

after finding my part and thank god for you guys i recieved it early it only took 4 days to get here i unscrewed my old oven part and popped the new one in easier than making cookies and now i can bake til my hearts content thanks for being there for me
barbara krebs