Range and Wall Oven Fan Noise and Normal Operation
Only electric ranges have the PreciseAir Convection System. When convection baking, the fan reverses direction to allow air to circulate around the food. Performance testing has shown reversing the fan produces more evenly-browned, baked goods.
On some models of dual-fuel and electric ranges/wall ovens, the oven convection fan comes on immediately. On some models, the fan is also used during preheat. The convection fan will typically operate during all convection cooking modes and (along with the heating elements) will shut off when the door is opened and turn back on when door is closed.. During cooking modes it will run to a specified on/off cycle, dependent upon the cooking mode being selected.
On all gas models, the fan does not start until preheat is reached. On the gas range, the convection fan will cycle off every time the unit calls for heat.
It is normal for the fan to cycle on and off frequently during the convection cooking cycle. Algorithms decide when elements and fans should run to create the optimal heat distribution within the oven cavity.
All Other Fans
Many range products use fans to cool down the internal components. Some GE ranges use fans to help cool an oven or range after self-cleaning. The fan or blower could come on during any operation. The oven-cooling fan for the electronic controls is controlled by a thermostat.The cooling fan may run throughout the entire bake cycle and continue even when the oven is off. This is considered normal operation.
Note: Gas and Dual Fuel free-standing ranges do not have cooling fans. These models start with JGB, PGB and P2B.