It seems as if the thermostat for the oven is not working.

GAS UNIT:ELECTONIC IGNITION

1ST MAKE SURE .(IF ELECTRONIC IGNITION, CHECK TO MAKE SURE THE PLUG FOR YOUR STOVE IS PLUGGED IN. IF IT IS PLUGGED IN AND YOU CAN'T GET IGNITION, THEN CHECK FOR TRIPPED BREAKER OR BAD PLUG IN OUTLET, OR GFCI RESET SWITCH IS NOT TRIPPED. IF ALL IS OK THEN MAKE SURE YOU ARE GETTING GAS TO THE UNIT. CHECK SELECTOR KNOB FOR PROPER OPERATION OR CRACKS TO MAKE SURE IT IS OPERATING PROPERLY. IF ALL IS OK THEN REPLACE SELECTOR SWITCH,THERMOSTAT IS CONNECTED TO THIS SWITCH.)

GAS UNIT:NON ELECTRONIC IGNITION

1ST MAKE SURE ALL PILOTS ARE LIT. MAKE SURE YOU HAVE GAS COMING TO THE UNIT. IF ALL IS OK, THEN DO THIS:
REPLACE OVEN SAFETY VALVE OR THERMOCOUPLE OR ADJUST THE FLAME HEIGHT AT THE OVEN PILOT. ALSO CHECK OVEN SELECTOR SWITCH FOR CRACKS OR PROPER OPERATON. CHECK THE SELECTOR SWITCH 1ST. IF ALL ARE OK THEN TURN OFF GAS TO THE UNIT FROM BEHIND THE STOVE AND REPLACE THE SELECTOR SWITCH, THE THERMOSTAT WIRE IS CONNECTED TO THIS SWITCH.TURN GAS BACK ON AFTER REPLACING THE NEW SWITCH AND CHECK FOR GAS LEAKS.

ELECTRIC UNIT:

CHECK THERMOSTAT KNOB FOR PROPER OPERATION. MAKE SURE IT IS NOT CRACKED. IF NOT CRACKED , LIFT OVEN TOP AND CHECK FOR LOOSE WIRING. IF ALL IS GOOD, CHECK FOR CONTINUITY ON UPPER AND LOWER ELEMENTS. CHECK BY REMOVING ELEMENTS, GET MULTIMETER, WITH ELEMENTS REMOVED, TURN METER TO VOLT/AMPS AND TOUCH RED TEST WIRE TO ONE END OF THE ELEMENT AND THE BLACK TEST WIRE TO THE OTHER END. IF IT READS OR MOVES AT ALL THE ELEMENT IS GOOD. TEST THE OTHER ELEMENT THE SAME WAY. IF ALL IS GOOD, RECONNECT ELEMENTS INSIDE THE OVEN. REPLACE THE ELEMENT. YOU CAN ALSO CHECK FOR VOLTAGE TO THE SELECTOR SWITCH WITH THE METER TO MAKE SURE IT IS GOOD BEFORE REPLACING THERMOSTAT.