Bush dryer display flickers or dims when the heater turns on.

Safety first: Unplug the dryer before checking internal terminals.

• Use a proper socket: Plug the dryer directly into a dedicated wall outlet, not an extension lead or multi-plug.
• Inspect terminal block: Check that live, neutral, and earth screws are tight and show no signs of overheating.
• Check mains filter: Replace the mains interference filter if it shows signs of damage or overheating.
• Avoid overloading circuit: Do not run multiple high-power appliances on the same circuit as the dryer.