I have a neff B6774N0GB combi oven. Activated the hot air button and it has tripped the circuit breaker. Fan element examined and looks perfect. Oven is isolated from other appliances
The hot air function uses a great deal more current than the other functions. Check the tag on the oven for current requirements, and check the rating of the circuit breaker in use. If the breaker is rated lower than the ovens rated maximum current draw, it will trip under the load. If the rating of the breaker is above the ovens maximum current draw, and there is nothing else plugged into that circuit, the breaker may need replacement.
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The hot air function uses a great deal more current than the other functions. Check the tag on the oven for current requirements, and check the rating of the circuit breaker in use. If the breaker is rated lower than the ovens rated maximum current draw, it will trip under the load. If the rating of the breaker is above the ovens maximum current draw, and there is nothing else plugged into that circuit, the breaker may need replacement.