Codes 12 And 64, A/C not working properly

2007 LINCOLN TOWN CAR
98,000 MILES • 4.1L • V8 • 2WD • AUTOMATIC
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BSTROO
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A/C blowing hot. Codes 12 And 64.
Sep 10, 2015 at 11:49 AM
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KASEKENNY
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So, this code is actually 1264 and not 12 and 64 as this is the EATC self-test that gives these codes.

I am attaching the testing for this code, but this is for the floor vent and is not going to cause the A/C to blow warm.

This is going to be a freon related issue.

So that means we need to start with checking the pressures on the system.

Here is a guide that will help with doing this:

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

I am attaching a chart below that will help with determining possible causes of this but let's start here and see what the pressures are when the engine is on, and the A/C is running.

Thanks
Jun 11, 2022 at 8:07 PM