Hi.we went on holiday last week in a caravan in the UK and it was freezing in the night and when you woke up in the morning you could see your breath !!!!! Anyway, I went to check my little boys levels and the pump handset wouldn't come on, I had only changed the battery the week before, and also in the middle of the night I got the message please warm up before using. My question is has anyone else had temperature problems. Also during the holiday his levels went up and since we have come home his levels are 15+ at times. Any advice, we were just getting things a little more stable and here we are once again back where we started. Harry is 4 and has been on the pump since Feb and I just want to throw it away....thanks for reading..helen