I'm a homeowner who decided to put the heat on for time last night. Its a forced hotair system.

The furnace kicked on and the blower appears to be working, but no air is coming through the ducts, so I've determined that it must be the zone-flapper things won't open (I tried a couple zones).

I've called my HVAC guy but haven't heard from him yet. Tonight is going to be cold here in CT so I really need some heat. My thought was if there was some way I could manually open these flaps I could get by until I get the guy out.

The flap motors appear to have power because I can see them and the little green lights are on, but for whatever reason they aren't responding to the thermostat.

So can I force them open somehow, either electronically or manually?