If you have a digital thermostat, is there still information (temperature etc.) showing on the display?
If you have a mechanical thermostat and you turn it to maximum demand, do you get any reaction from the heating or cooling system? (always remember to reset to normal settings after this exercise)
Check that the fuse or breaker is good or on. If you do not know how to do this safely please do not attempt this.
Is the air filter clean? Occasionally clients call and say "oh, yes it's clean" neglecting to inform us they only did it a few moments ago. In some situations it takes time for a problem to reset itself if the filter was blocked and just changed.
Most often when the air filter is dirty it impedes air flow and the heating or cooling system capacity is reduced bringing complaints that the system does not seem to be working as well as it was a month or two ago
Contributor Area
If you would like to become a contributor and don't already have an account, please visit HNN.ca for more information.