Constant Blinking Snowflake

[SirGeorgio]

Might be the Ambient air temp sensor/sensors because you have the intelligent climate control.

Even after they were changed to new ones?

 

[HiHoeSilver]

Never saw the Tech II info but everyone there has confirmed that everything is normal and doesn’t give a red flag. They attempted and studied the car to see what triggers something like this cause it’s at random! When it does happen I watch the compressor clutch turn and stop constantly like something is tripping it if that makes sense! But the snowflake is either solid or randomly blinking either or I have a video but I can’t post it on here!

For video, post to YouTube and link it here. The site will embed it in your post for you.

 

[OR VietVet]

This system is NOT supposed to be using the low pressure switch to cycle the clutch.

Thats why there are discharge temp sensors and a sensor in the evaporator. The control head is in full control on this one.

So... if you're getting a low pressure trip code then that means at some point during your drive, the suction pressure is getting too low. Was the system thoroughly evacuated with a new drier installed? You probably have moisture thats freezing inside the system or a partially plugged metering device. You said it happens at 65mph aka highway speeds yes?

I say evacuate because some dudes think putting a vacuum on an AC system for 5 mins is good enough when that is very much not the case

Sent from my SM-G975U using Tapatalk

That's what I was thinking on the #6 post and I feel the same. Sounds like no drier/accumulator when open system before and piss poor methods/time on the vacuum pump. If you open it to do that do the orifice too.

 

[SirGeorgio]

I Have drove the car now for 2 days. With full AC and it only blinked once temps outside didn’t exceed 80 those following days! Thank you for the suggestions! I will follow up with the results when I can drop of vehicle!

 

[muncie21]

That's my guess also. Intermittent connection of ambient air sensor to the control unit. If ambient is out of range (too cold) the snowflake blinks and no AC.

 

[jwth]

Maybe the pilot orifice and screen need to be replaced

 

[SirGeorgio]

Hello, I have come back with great news. As the AC has been resurrected now. While unplugging everything from the back of the ac and spraying electrical cleaner on all 4 color-coded plugs it seems to have solved the issue. We had pressure tested it and evacuated all Freon within the system and now it seems to run perfectly blowing cold air constantly. I had to wait till the weather got warmer to provide a concrete response to you guys. Thank you for assisting me!

 

[Geotrash]

Hello, I have come back with great news. As the AC has been resurrected now. While unplugging everything from the back of the ac and spraying electrical cleaner on all 4 color-coded plugs it seems to have solved the issue. We had pressure tested it and evacuated all Freon within the system and now it seems to run perfectly blowing cold air constantly. I had to wait till the weather got warmer to provide a concrete response to you guys. Thank you for assisting me!

Fabulous! Thank you for coming back to follow up. Very few people do that and it's very much appreciated.

 

[exp500]

Referring to your Title- The Other Snowflakes are always blinking!

 

[exp500]

And please EDIT your title- Add "SOLVED". Thanks, helps searching for a solution.