when the grill on the cooker is on for a few min the element sparks and the circuit breaker trips. what is the cause of this. Tricty bendix model sb 420. thanks
The element is sort of OK until it gets warm and pieces of it begin to expand with the heat and then something nearly touches something it should not be touching and a spark jumps between them and runs to ground and the RCD on the consumer unit senses the leakage to earth and trips off.
A new element might cure the problem - but you already knew this I guess...