This actually sounds like a hardware problem to me, like a stuck relay. No oven manufacturer is going to go for Windows for Devices because the hardware would be too expensive, unless you have an oven you can surf the web from too. Appliance manufacturers are incredibly cheap, and if they can shave a dime off a part they will because that adds up with tens of thousands of devices.
I recently repaired my renters' refrigerator. The problem was the defrost timer -- all freezer/fridge systems have a heating wire that runs through the coils, which turns on to melt off the ice periodically. (This is a contributing factor to freezer burn, but it's necessary to prevent the freezer from turning into a huge block of ice.) The defrost timer wasn't, so the duct between the freezer and fridge iced up and the fridge didn't cool anymore.
How would you design a defrost timer? I would have a small timer IC connected to a relay. Hah!
The cheapest fridges still use a mechanical defrost timer. I took it apart, and it's really quite clever. There's a very small motor connected to a small worm gear connected to a series of step-down gears, the last of which rotates once every 10 hours. That is connected to -- this is hard to describe -- a thick round gear where the outside is a ramp; that is, if you were touching the outside of the gear as it turned your finger would move out until it reached the end of the ramp and dropped back.
Inside that section are also three relay-like contacts that are the external timer interface. The center one gets power, the left-most goes to the compressor and the right-most goes to the defrost wire. These are springy and pressed against the ramped wheel. Normally the two left ones are in contact, running the compressor. As the wheel rotates they move out towards the third contact... then the first contact falls of the wheel (it's slightly shorter) and the outer two make contact, running the defrost wire until the second contact falls and the process starts again.
no subject
I recently repaired my renters' refrigerator. The problem was the defrost timer -- all freezer/fridge systems have a heating wire that runs through the coils, which turns on to melt off the ice periodically. (This is a contributing factor to freezer burn, but it's necessary to prevent the freezer from turning into a huge block of ice.) The defrost timer wasn't, so the duct between the freezer and fridge iced up and the fridge didn't cool anymore.
How would you design a defrost timer? I would have a small timer IC connected to a relay. Hah!
The cheapest fridges still use a mechanical defrost timer. I took it apart, and it's really quite clever. There's a very small motor connected to a small worm gear connected to a series of step-down gears, the last of which rotates once every 10 hours. That is connected to -- this is hard to describe -- a thick round gear where the outside is a ramp; that is, if you were touching the outside of the gear as it turned your finger would move out until it reached the end of the ramp and dropped back.
Inside that section are also three relay-like contacts that are the external timer interface. The center one gets power, the left-most goes to the compressor and the right-most goes to the defrost wire. These are springy and pressed against the ramped wheel. Normally the two left ones are in contact, running the compressor. As the wheel rotates they move out towards the third contact... then the first contact falls of the wheel (it's slightly shorter) and the outer two make contact, running the defrost wire until the second contact falls and the process starts again.