I have an Amana AOCS3040SS, serial 9708142014 convection oven. I have just replaced the relay board suspecting this to be the initaal problem but no, the problem still exists: Set any function (Bake, Broil, Convection Oven, etc etc), I set temperature, display responds as it should indicating my set temp (350F) then after a few seconds drops to the start temp (170F) as normal. After a few more seconds the temp & function display totally disappears leaving only the time displayed and the oven useless. Any advice appreciated!

I will say that is the control board that is not working properly. Have you try to unplugged for phew minutes?, this will reset the current settings. If not, I will star replacing the control board. Good Luck!.

The lock motor (latch) has gone bad. Unfortunately, the part has been discontinued and is no longer available for this model.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/jason_4570d45317834dd3

Sounds like a problem in the relay control board. (aka Transformer Relay Board)

If you are comfortable removing the oven from the cabinet (easy!!) and tilting the control panel out a bit, the Broil control relay is the 2nd one from the end on this pic:





If you wanna take it a bit further, and feel comfortable poking around with a DVOM with live power to the board (not recommended for the novice), check relay K5 for 120V on E-12 (blue wire). If you have it, hit the "Broil" button, set it to "high", and check E-13 (black wire to the left of blue wire) for 120V. If you don't have 120V to E13, chances are the relay has flaked out on you.

If this is right down your alley, definitely spend some QUALITY time reading these manuals, they will help you isolate the problem.

http://www.servicematters.com/maytag_library/docs/16021875.pdf

http://www.servicematters.com/maytag_library/docs/16021876.pdf

Something else you can check while it's preheating: a few drops of cooking oil on the bottom of the oven will tell you if your lower element ("bake") is functioning at all. If it's working, you will get smoke during pre-heat (turn it off!!), if it's not - the problem *can be* in the relay board. Does your "Broil" function work ok.? if it does, then chances are your ERC (electronic range control - the main board that controls all functions) is fine, and the problem is now MOST likely in the relay board. The lower "Bake" element does most of the work in the oven - if the oil trick doesn't give you some smoke, let a tech know that the lower element is not functioning. That will help narrow down the troubleshooting scope.!

Which element..?? there are 3... Check for voltage to the bake element.!!! (2 legs of 110-120 VAC) Does your broil function work.? Convection.? or did "bake" flake out.? the relay boards are not very robust in these ovens, and manufactured as cheaply as possible. The board mounted relays develop cracks in their soldered connection to the PCB over time, resulting in intermittent opens for some of the relays. Spend some time narrowing down the relay controlling the circuit that is dropping out, and re-solder the node. Sometimes just hitting it with a soldering pencil will be enough to restore the connection, but I would recommend adding a little silver solder to the puddle. It will help keep that connection from opening again.! Heck, while you're at it, re-solder all the board side relay nodes to prevent future issues.. or just replace the $165 board.. :)

If it is a drop down door, then you will probably have to replace the oven door hinges, as the springs are most likely weak.
Hope this helps with your prob.

Try a few drops of vegetable oil on the lower pan of the oven, and turn it on. If you do not get smoke during pre-heat, chances are your lower element is not working properly. If you DO get copious amounts of smoke off the pan, the problem could be with the temperature sensor.

If your lower element is not functioning, and if your broil function works just fine, the problem may be isolated to the relay control board. (relay K4 controls half of the 240V required to run the Bake element correctly)

Just wait for the oven to cool off. The unlock is automatic....the door will unlock eventually. It might take a long time.

looks as if th ef1 only pertains to the erc(electric range control), the switch membrane qould be an f7 (shorted key pad, the oven sensor os diff code all together