Blackburn is very good about thier warranty. Send it to them and they will send a new one our gratis. The did this for me on a ten year old pump. I called to order seals for it and they asked me to send it for review. they told me that they take thier lifetime warranty seriously and sent me a brand new pump in exchange. I own two Blackburn mini-pumps - one for each bike and if my wrench-force floor-pump ever dies - A Blackburn will be in it's place. You bought good stuff so let the mfg stand behind it.