For model numbers that are not listed below, please call our toll free number at 1-877-650-5775 to order the appropriate manual sorry this is all I could acquire.
page 37 is parts list order from them or do online search for parts or an appliance repair shop ----------https://www.manualslib.com/products/Heartland-Appliances-9100-232356.html
Question moved from Audio category to Heartland Range.
Sounds a bit like the oven timer is set. If not, turn off the power at the switch or breaker for 10 minutes. If that doesn't work, it could be anything, element, knob or control board so you will need a service call. They are a strange looking beast!
https://fireplaces-rochester-ny.com/wp-content/uploads/2019/04/Classic-Dual-Fuel-Range.pdf
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more than likely the module that works that portion was burnt out when the power came back on . having no clue as to where you are located in the world nor the voltages used there