There could be a number of reasons why your heat pump is not blowing hot air. One possibility is that the fan inside the heat pump is not working. Another possibility is that the furnace or air handler, which the heat pump circulates the air through, is not working. Finally, there could be a problem with the ductwork that connects the furnace or air handler to the rest of your house. If you suspect any of these problems, it's best to call a professional to diagnose and fix the issue.

There are a few ways to reset your heat pump, but the most common is to simply turn it off and back on again. If that doesn't work, you can try disconnecting it from the power for a few minutes and then reconnecting it. If neither of those methods work, you may need to call a professional to help you troubleshoot the issue.