Thank you for contacting the AnswerARMY.
That isn't much to go on, suggest that you check the belt for tension and that the dump valve is pushed in. If these do not fix the issue you should take the mower in to a local authorized Husqvarna service center to have it inspected and repaired.
You can find your local dealer by using the dealer locator on the webiste http://www.husqvarna.com
Thank you for contacting the AnswerARMY.
That isn't much to go on, suggest that you check the belt for tension and that the dump valve is pushed in. If these do not fix the issue you should take the mower in to a local authorized Husqvarna service center to have it inspected and repaired.
You can find your local dealer by using the dealer locator on the webiste http://www.husqvarna.com