Only blows cold air from from one side

SOURCE: Left side driver heating not working

Its possible you have an air mix control motor malfunction or a mode control motor malfunction. To retrieve your trouble codes from the heater control panel do the following. 1. turn the ignition switch on. 2. Turn the fan switch off. 3. Press the recirc control button to select fresh, then continue to hold the button until the recirc indicator comes on for 2 seconds and then goes off. If the system is okay, the recirc indicator will stay off. If there is a problem, the recirc indicator will blink a trouble code. The codes are one blink=air mix motor/circuit problem. 2 blinks=mode control motor/circuit problem. 3 blinks=evaporator temp sensor circuit problem. Mice can and do get into cars and make nests in the air conditioning systems and cause blockages so the dealer was not making up a fairy tale. That is also a possibility but you would probably smell some bad odors if that were the case.

SOURCE: 2003 accord air conditioner

I ad this problem fixed and it cost $35. Apparently, this happens when the Freon level is low for some reason. They refilled the Freon and now I have AC on both sides. Don't forget to replace the internal filter in the glove box.

SOURCE: 2003 accord air conditioner

This is a common problem when the AC system has a low charge.
If this is the case, you have a leak somewhere. Do not try to fix it yourself without the proper equipment.

SOURCE: 2003 accord air conditioner

Hi there. When a compressor is replaced, two things are in fact being replaced - both the compressor and the refrigerant (Freon) and if the problem is resolved as a result which of those two replaced elements caused the original problem? Well you will never know and so before the compressor is replaced you need to have you’re A/C system recharged – it’s by far the most cost effective initial thing to do. In general A/C systems loose at least 10% of their effectiveness each year through loss of refrigerant and so given the age of your car; it’s the first thing to focus on. A professional A/C centre will also be able to tell you whether your compressor is working properly after having a refrigerant recharge by the monitoring the operating pressures in the A/C system.

SOURCE: I have a 2004 Honda Accord and the Driver's side

the a/c system may be low on a charge. have a a/c shop ck it. if its low, have them ck for a leak. if unable to locate a leak, they may need to rechagre it, and add a UV dye and you may have to bring it back several weeks later.