Inconsistent air temperature out of the vents

[DevalDragon]

I had the A/C condenser replaced back in January and everything seemed fine. However, in the past month or so, the air temperature is inconsistent. For the first 2 years I owned this car, I left it between 20 and 22 and left it alone. Now I'm constantly having to fiddle with the dial to get comfortable. Sometimes I have to set it all the way down to "LO" to get it to cool down enough to be comfortable. And when I set it to "LO" it can take 2 or 3 minutes before it starts blowing really cold air.

I have a dashmat (https://www.amazon.co.uk/dp/B0CWV9SMNB) on the dashboard and I removed it to see if that changed anything - it did - without the dashmat, I set the base temperature was 22 instead of 20 but the fluctuation did not improve. I have noticed the temperature is more stable on cloudy days than when it is sunny.

I cleaned the sensor on the dash and used compressed air to clean the sensor next to the steering wheel. I also ran the Honda self test ( https://www.hondafitjazz.com/manual/a00/html/s0/saa5es0k71100000000bbat00.html ) and it ran with no issues (was flashing "NO" at the end.

Is there anything else I can do? Or anything else I should know before taking it back to the dealer?

[ahavoja]

Check that Econ mode is off, because if it is on, it would make the air conditioning less effective.

Also check that the air outlet vents in front of you are pointing the same direction they were pointing before. I have noticed that if the vent is blowing cool air directly at me, I start to feel even colder.

The temperature fluctuations on sunny days could be explained by the sunlight sensor on the dashboard. When sun shines onto it, the climate control system tries to compensate by blowing colder air. And when you drive into shade, the opposite happens.