Display shows SAb and oven will not heat, but clock and some keys work.

Safety first: No internal repair is needed.

• Exit Sabbath mode: On many Summit ranges, press and hold BAKE and BROIL together for 3–5 seconds, or press and hold the TIMER key for several seconds until SAb disappears. Refer to your model's manual for the exact key combination.
• Power reset: If the display remains in SAb, turn the breaker off for 1 minute, restore power, and immediately perform the Sabbath exit sequence.
• Prevent reactivation: Review the user manual to avoid accidentally entering Sabbath mode again.