How to reset form values when Ajax submits?
You can try the code below

$response-&gt;addCommand(new InvokeCommand('#form-id','trigger',['reset']));



  The 'invoke' command will instruct the client to invoke the given jQuery method with the supplied arguments on the elements matched by the given selector. Intended for simple jQuery commands, such as attr(), addClass(), removeClass(), toggleClass(), etc.


This command is implemented by Drupal.AjaxCommands.prototype.invoke() defined in misc/ajax.js

Please see InvokeCommand