heat pump credit

That sounds like you entered the heat pump in the section for a geothermal heat pump and not in the section for an electric heat pump.  Go back through the home energy credit section and enter the cost of the heat pump in the proper section.

The electric heat pump cost should have been entered on the screen labeled Enter your qualified energy property costs

To enter Home Energy Credits -

Click on Federal Taxes (Personal using Home and Business)
Click on Deductions and Credit
Click on I'll choose what I work on (if shown)
Under Your Home
On Home Energy Credits, click the start or update button

Or enter energy improvements in the Search box located in the upper right of the program screen. Click on Jump to energy improvements