Fabricate and adapt a smaller hose to your vacuum cleaner and attach the smaller hose to the drain tube to suck out the debris. You could blow it in with compressed air but then the debris will only plug it up again.
Check for debris stuck between the ac condenser and the radiator such as leaves.
by being jolly fellow
You must open the hood. Now check for a rubber drain hose coming off from the firewall. You will most likely have to unclog the hose as it is typical to become filled debris.
Unclog the drain.
Simply by flushing out debris and liter. It can also Unclog your toilet if needed.
You can unclog your cars air conditioning lines by disconnecting the lines and blowing air through them. It may be just as easy to purchase air conditioning lines.
A mixture of vinegar and baking soda is an effective and environmentally friendly way to unclog drains. You can pour boiling water down the drain afterwards to help clear any remaining debris.
If you have some Baking Soda and Vinegar, this can be used to unclog a drain. If the drain is really backed up, you could use a wire hanger to unclog it. Simply bend the wire hanger into a hook thin rod with a hook at the end and use it to push and scrape debris out of the drain.
An AC compressor requires regular maintenance involving proper storage during the winter, which involves wrapping the compressor. You also have to make sure you keep the back side of the AC compressor free of leaves and debris and clean the air filter regularly.
I do know that there is a rubber nipple on the firewall that you have to find to unclog. I am guessing that it is close to where you see the a/c tubes enter the firewall
flying Debris is branches and leaves the wind is carrying it but falling debris is bricks falling off buildings and chimneys things like that.