A/C freezes over on long drive - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

itsjustdaphne · 04-05-2015, 06:39 AM

I have an S15 SR swapped zenki with working A/C, and after a 45 minute drive or so the A/C freezes over and on speed 4 it feels like no air is coming out at all out of the dash vents. I'm certain that the drain tube is unclogged because when I park there's always water on the floor, but after driving for an hour I can pick up little icicles off of the blower unit behind the glove box. I tried keeping the A/C button off and going to full heat and it still does it (no heater lines hooked up), so the only fix is to keep the A/C off for 15 minutes and turn back it on.

04-05-2015, 06:39 AM	#1
itsjustdaphne Zilvia Addict Join Date: Sep 2011 Location: South FL Posts: 785 Trader Rating: (12) Feedback Score: 12 reviews	A/C freezes over on long drive I have an S15 SR swapped zenki with working A/C, and after a 45 minute drive or so the A/C freezes over and on speed 4 it feels like no air is coming out at all out of the dash vents. I'm certain that the drain tube is unclogged because when I park there's always water on the floor, but after driving for an hour I can pick up little icicles off of the blower unit behind the glove box. I tried keeping the A/C button off and going to full heat and it still does it (no heater lines hooked up), so the only fix is to keep the A/C off for 15 minutes and turn back it on. __________________ @ddaapphh \| @spectuned Last edited by itsjustdaphne; 04-06-2015 at 08:40 AM..