Good afternoon, my name is ***** ***** I will assist with your query.
The noise you can hear, does that sounds like a fan?
The most likely cause is a faulty thermostat, this very unlikely to be an issue with the installation if other functions such as the clock\timer and oven fan\light are all working.
Even though the light doesnt come on, does the oven get hot, and is the fault present regardless of the setting (eg grill, fan etc)?
Ok this sounds like the neon bulb has failed, the most common fault is the bulb has come out of place and is hanging lose and thus you cant see it come on, worst case the bulb has blown or has a lose wire. However all of these are hardware related and covered under warranty, so I would look to arrange a engineer to attend and fix the issue with the neon.
In order to arrange a Neff service engineer to attend under your warrenty please call 0344(###) ###-####and select option 1
I am afraid so, if the neon has come lose its most likely occurred in transit, appreciate its frustrating, however its unlikely to be an area of concern as its cosmetic and shouldnt give rise to any further faults.
Appreciate if you can rate the service received to date so I may close the case.