I have a 3 ton heat pump system. The heat pump unit failed. I have just had the air handler on with no power to the heat pump to get air flow while I wait for A whole new system install - including new ductwork. After a couple of days, *suddenly* the air flow increased by more than double. On the far end of home registers, where for years I had to put my hand up to the register to see if there was any air flow, now I can stand 8 feet away and feel a breeze. I'd love to know what caused that all to suddenly change. I'd love to know if 'something' was blocking the air flow which had caused the 7 year old system to never have a chance to work properly, to cause a failed capacitor a few years ago, and also to cause the entire heat pump to fail.

Please help if you can.

Thank you.