I am not knowledgeable on this subject, but a quick google search shows many people have the same issue. Quite a few "fixes" are also listed. It appears that both are short pull, but are subject to specific set up needs. I am quite sure others will chime in with more definitive answers that might help, though info on the specific model, maybe pictures of the set up, would be helpful. Assuming parts are compatible is usually not a good idea.