After a little bit of advice at the moment… I am concerned our integrated Neff Fridge Freezer may not be fit for purpose (as opposed to faulty). I purchased it from AO.com roughly 18 months ago and paid via credit card. For the moment I have been following the manufactures warranty claim procedure. I am aware my contract is with the retailer but elected to contact the manufacture as I deemed this the path of least resistance and quickest route to a working fridge freezer. To their credit, they have been very quick in despatching engineers and overall I am pleased with their response. Unfortunately however it hasn’t necessarily resolved my concern. To put it into context, last Wednesday was the hottest day for several years, I believe temperatures peaked around 34c in the hottest parts of the country, and that’s when problems started. I came downstairs at roughly 10PM and heard the fridge freezer alarm sounding. I went to check and the freezer was at -10 (it should be -18). I attributed it to what had been a hot day (though by this point it was obviously much cooler), put the freezer on to ‘super’ mode and assumed it would be back to normal in the morning. By the morning it was still alarming, this time at -2! That’s despite being on ‘super’ freezing all night! I contact Neff who advise me to do a manual defrost (turn it off for 8 hours). Once I had done this (pretty inconvenient) I turned it back on. The fridge very quickly reached its set temperature of 4c. The freezer did absolutely nothing for at least 5 hours until we went to bed. I contact Neff who arrange an engineer visit. Annoyingly, at some point during the night the freezer miraculously started working and by breakfast time it was at -7. By evening it was back to -18. At this point I prepared to put it down to ‘weirdness’ and hope that it’s just a one off. Not wanting to end up paying for an engineer to find “no fault” I cancel the visit. Saturday comes and it’s also a pretty warm day. Early afternoon the freezer alarm sounds again, its back at -7. I clear the alarm and reside myself to the fact it really is faulty. I did not monitor the temperature beyond this but noted the alarm light was on until my last observation in the evening. I call Neff once again and schedule an engineer visit. But, once again come the next morning it’s back at -18. Being quite convinced there is something wrong with it I see through with the engineer visit. The engineer has today visited and whilst being helpful and thorough, unable to isolate any particular fault putting it down to a “glitch with the weather”. I attempt to clarify this, but don’t really get anywhere – the freezer is rated for ambient conditions up to 38c – even in the hottest parts of the country it’s only touched 34c. To my mind a £1000 Neff fridge freezer should be the best of the best, I shouldn’t get nonsense like this just because it gets a bit warm – a freezer should by definition keep food frozen (within its rated environment). If no individual component is faulty yet the system as a whole does not meet specification surely this renders the device not fit for purpose? My question is; if I ever wanted to bring a claim against the retailer under the sale of goods act how would I substantiate this? Even an independent engineer may not be able to document a specific fault - It appears to be a result of an under specification in the units design. As I mentioned earlier, it’s not like this is a cheap and cheerful fridge freezer – it really should be able to cope with the extremes of a British summer, as indeed significantly cheaper models do.