Just moving into a new house soon it has a baxi solo 2 gas boiler i was in the house about a month ago to view the house i had a look around so i decided to turn on the boiler, at first it did not fire i just heard a clicking sound for a min or two and then all of a sudden she fired up and away she she went, all rads heated up great and then i turned her off at timeclock but left main power switch on, came back today for the first time in a month as i am moving in soon. As i was outside the house i could hear a noise coming from the flue but it was cold air expelling from it i went into the house timeclock was in the off position but as i said before main switch was on i could hear a huming from the boiler still. I removed the front plate on the boiler and the fan light was on but all the rest of the lights were off (boiler light, burner light, pilot light, overheat all off) so i switched off the main supply switch and fan stoped running then i switched it back on again and fan stayed off and light was off then i tryed to fire her up and turned her on at the timeclock and all that happened was the fan started running again and also the boiler light lit up aswell as fan light and notting more happened, no other lights came on and notting else happened does anyone have any ideas? No one is living in the house for months so boiler is never on could this play a part in this very cold weather. Thanks for reading