Viking oven makes loud banging or rattling noises during convection or when heating.

Safety: Turn off power and allow the oven to cool before tightening or removing parts.

Steps:

• Remove all racks and accessories, then run the oven briefly to see if the noise disappears. If so, inspect racks for warping and ensure they are seated properly.
• Remove the convection fan cover and check that the fan blade is tight on the shaft and not contacting the cover. Tighten or replace as needed.
• Inspect internal panels and heat shields for loose screws; tighten all accessible fasteners.
• If the noise is a grinding or squealing from the fan area, the convection motor bearings may be failing; replace the motor assembly.