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After setting baking temperature, the oven temperature increases to that temperature, but resets and displays either "----" or the word OFF after about an hour.

Cannot set in a new bake temperature until oven cools.

NO "F code" is displayed, only the dashes (----) or the word OFF.

[PS Staff - Sheila]

It sounds like the control board (clock) is malfunctioning.

Can you please verify your model number?

The first part of it is fine 12-4980 but the last part is in question.

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Sheila,

The part number off the metal tag shows:

124980 10/1

The serial number is DF0330021-4 1990

That is all I have.

Thanks

[PS Staff - Sheila]

Here is a link to your range model 12-4980.