Air Conditioner Problem?

Thank you very much for all of your critical help

Air Conditioning problem
1998 Lincoln Town Car V8 Two Wheel Drive Automatic 86.000 miles

hot air all the time

suspect blend door
check for codes
Simultaneously depress OFF and FLOOR buttons, then press AUTOMATIC button within 2 seconds. Display will show a pulse tracer going around the center of the display window for up to 30 seconds while test is running
Code Number --------------------------Circuit Test
24, 25 ---------------------------Temp. Blend Door Actuator
30-------------------------In-Vehicle Temp. Sensor Short
31-------------------------In-Vehicle Temp. Sensor Open
40, 42 ----------------- Ambient Temp. Sensor Shorted
41, 43 -------------------- Ambient Temp. Sensor Open
50, 52 ----------------------- Sunload Sensor Shorted
115 ---------------------Engine Coolant Temp. Sensor

This could be the blend door or it may just be low on Freon. We should check and make sure the compressor is coming on, and if it is then we need to check the pressures with a gauge set.

Here is a guide that explains this and how to evacuate and recharge the system. I also attached what the pressures should be based on ambient temperatures. Let us know what you find. Thanks

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