I am living in Alberta and they have just been experiencing record temperatures for the time of year of -29. Anyway we went away for the weekend and came home to find the toilet on the landing won't fill up. There has been no problems with the toilet until we went away. The taps and the shower in the toilet all work perfectly. The ensuite toilet and the other toilets in the house are also working fine. Could the pipe be frozen?

My husband and I are from the UK and have just moved here so are not used to Canadian houses.

Any advice would be appreciated.