Hoover oven makes a loud banging or popping noise when heating up or cooling down.

Safety first: Turn off power and allow the oven to cool before tightening any screws or panels.

• Check internal panels:
  • Inspect the side, rear, and base panels inside the cavity for looseness.
  • Tighten any loose screws securing liners or guides.
• Inspect elements:
  • Ensure top and grill elements are not touching the cavity walls.
  • Adjust mounting brackets if necessary to provide clearance.
• Check external panels:
  • Remove the outer panels and check for loose screws on the frame, fan housing, and brackets.
  • Tighten all fixings securely.
• Note: Some minor ticking from metal expansion is normal, but loud bangs usually indicate something loose or misaligned.