Our AC has stopped giving us cool air a few times. A few months ago it did this I turned the breaker off, waited, turned it back on and it worked again. A few months later the same thing happened, I did the same thing again and it worked for 2 more months. Two nights ago it stopped giving cool air...

I have a Lennox furnace in my attic with heat pump? Outside. My unit seems to be running fine (in fact 24/7) but I'm getting no cool air through the registers. What should I do? I have turned the unit and my downstairs unit is attempting to cool the whole house.

My heater Evcon Unit model DGAAo7oBDTB Serial # WOB69557912 a forced air heater tries to start, it clicks but then turns off and doesn't start.

I have a york diamond 90 model P3UR When I raise the temp, the blower goes on, then I see the pilot get hot ( glow ), then blower goes on for about 30 seconds and shuts off. This goes for 3 cycles then stops. Tried cleaning the flame sensor... still does the same thing Can anyone help? Thanks

Heather starts up but no air comes out.