After use the clock display turns itself back to 0.00. The oven is working properly but this problem seem to happen when the oven is cooling

What you need to check is for power at the clock.TURN OFF BREAKER gain access to clock and use volt meter. One the clock will be wires maked L1 & N on those 2 wires when breaker is turned back on their should be 120 vac. IF 120 vac at those 2 wires,replace the clock, if not 120 vac into clock check for burnt/broken wires

We have here a video showing how you can check the temperature sensor
We also here the parts diagram of your model

have u tried setting the clock my oven wont go whithout the clock set

Same thing happened to our Kenmore range and I found a solution on the web about fixing this problem on a fridgedaire range. It was to hold down the clock button for an extended time ~15 sec. It worked for our kenmore and hopefully for yours too.

Unplug the oven or turn off the circuit breaker for 30 minutes. .When it comes back on press cancel,then set the clock and try again.
If it still fails to work you will have to replace the EOC electronic control(clock).

Try turning the oven circuit breaker off for a minute then back on. Reset the clock and see what happens.

does anyone know were i can get a replacement top oven inner glass for my stoves heritage 720EF ?

The oven control panel has failed. For more tech help with this issue and a place to order parts I suggest you go the link below, it is where I go for parts and help. You will need to model number available. Appliance Parts Lawn Mower Parts Heating Cooling Parts 365 day returns

Greetings, this JUST happened to me.

The solution was to break the circuit at the breaker panel for 1 minute, reset the clock, and the unit seems to work now.