Low is displayed on knob, no heat, or little heat, in oven. 

Oven that appears to be heating, fans run, lights on but not heating. Means that oven elements are not getting full 240VAC or 208VAC. 

What to do if your oven knob says low and oven has no or little heat. 

  1. Reset your oven breaker. Remember to fully reset the breaker, move the breaker fully to the off position then push it back to the on position
  2.  If range does not heat after resetting the breaker. Call your Factory Authorized Service center or an electrician. An electrician can test the incoming power to the range. An authorized factory service technician can test both the incoming power and the range.