My hear pump was not working right it was blowing cold air and I went out and hit the reset button. I want to know if I should call a repair man to look at it? It's working now and it's giving me hot air, but It does not shut off unless I turn it down. It is cold here it's only 27 and the wind chill is 15 and the temp got down to 13 last night, has that gor anything to do with it?
Thank you

See heat pump section of this post for answer.

https://www.askmehelpdesk.com/heating-air-conditioning/heating-cooling-maintenance-repair-troubleshooting-frequently-asked-questions-58313.html#post268203