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Message: <blockquote data-quote="Grand" data-source="post: 689494" data-attributes="member: 6501">Was travelling back from Penang and air cond was super cold until Rawang when gradually we felt that the air was coming out slowly although we keep increasing the blower control. The air remained cold but air volume decreased. Luckily it was already Rawang and we just had to endure slight discomfort until we reached PJ. Left the car overnight and air cond was back to normal when I started the car next morning. I remember reading somewhere it could be a case where due to the prolonged cold air blowing out, the cooling coil freezes up and thus block some passage of air resulting in decreased air blow. Checked with air cond shop and they confirmed gas pressure is sufficient. Did not do anything thus far. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /> So I guess it is advisable to switch your air cond to blow hot air for a short while when travelling long distance to prevent this from happening?</blockquote>