My 2009 honda accord ac is blowing cold then hot?

My 2009 honda accord ac is blowing cold then hot?

What have you checked? It could be anything from a low freon level due to leaking to cooling fans, pressure switches, relays, temperature sensors, compressor problem, clutch gap, overheating, restriction in the system, overcharging, air flow problem, wiring, PCM etc. The list is almost endless.

Unless you have the knowledge about how the system work, wiring diagram reading skill, have enough tooling and equipment to work with and how to diagnose the proper way. I would suggest you to have the system check out by someone who know how to do so.

If you have all of the requirements to do so then start by giving me the pressure readings and each status of the things I've mentioned above then we'll discuss about it.

AC system on modern vehicle is very complicate and can be dangerous if do it wrong. I'm sorry. I've skipped not to answer the question but final thought is just to let you know what you might need to know. I have no idea what you're mechanically inclined and know how or not so if I've insulted you in anyway: I'm sorry. HTH.

Ps: Get an estimate of repair with all of the details and we can work and figure out what need to be done.