Hi I have looked through the forum regarding the stop of the Wunderground API keys and found that by simply deleting the API key from settings Opensprinkler should then default to OWM API.
As of yesterday I noticed my weather info in opensprinkler has stopped working (im picking this is due to the WU API) adn not showing weather info (Temperature and image). So I have gone into my settings and deleted the API key in hopes of it defaulting to OWM but I still do not get any weather info, therfore my sprinklers are on while its raining hard….