HVAC blinks but no codes present - ZR-1 Net Registry Forums

Matt B · 04-19-2023

It's been a while since my HVAC came up with some strange behavior and I've monitored it since then. My issues still persist - sometimes the LED flashes (with no noticeable effect) and sometimes the system kinda resets to 75?, full auto mode, rear windshield defrost on.

A/C blows ice cold under any conditions so I don't assume a R134 leak.

When I did the heater core I checked all vacuum lines, actuators and that vacuum routing thing that sits above the drivers footwell. No issues here as well. Everything is tight as a drum.

So... What's next? I don't have any functional issues, it just sucks when it happens. I don't like things that don't work as expected...

04-19-2023	#12
Matt B Join Date: Jan 2021 Location: Beautiful Bavaria Posts: 523	Re: HVAC blinks but no codes present It's been a while since my HVAC came up with some strange behavior and I've monitored it since then. My issues still persist - sometimes the LED flashes (with no noticeable effect) and sometimes the system kinda resets to 75?, full auto mode, rear windshield defrost on. A/C blows ice cold under any conditions so I don't assume a R134 leak. When I did the heater core I checked all vacuum lines, actuators and that vacuum routing thing that sits above the drivers footwell. No issues here as well. Everything is tight as a drum. So... What's next? I don't have any functional issues, it just sucks when it happens. I don't like things that don't work as expected... __________________ ZR-1 #638/1991