Hmm how would I go about cleaning it? Only reason I say is that its running and blow the air but if the air gets warm i hit it a few times and normally turns cold. So any tips on what else could be causing the air to get warm or whts happening would help. Its all original parts down their and someitmes it will be cold fo rmonths then 1 day just gets warm. sometimes it comes back others i hit it with a r34 recharge can and is fine again