I have a 92 Accord LX sedan. The A/C stoped working for a few days. Checked everything that I could think of. Found that the 7.5 fuse inside the car had blown. Replaced it and a couple of days I could hear the freon moving thru the evaporator added a little more freon to the car and it worked for a about two weeks. Well it got cool in Houston and needed the heater. It warmed up to A/C weather again and it stopped working again. I checked the fuse and it had blown again. replaced the fuse and nothing. Both of the fans come on and I check the freon level in the car and it showed to be a little high backed some out to level it off and nothing. However when the fans are on the rev is closer to 1500 and at one point the revs would jump up and down. That problem is going away somehow and revs are still a little high, but the A/c is not blowing cold at all and I can not hear anthing except for the blower motor coming on inside the car. I hope i gave enough info.

 

The 7.5A fuse (no. 7) supplies power to the compressor clutch. If it's blowing either the compressor clutch relay or compressor coil has a short. You could put a mechanical jumper across relay contacts to simulate closed relay and see if that blows the fuse, or check compressor coil resistance w/ a precision VOM (3.6 +/-0.2 ohms), or simply replace relay and see if problem persists.

How did you check system pressures? If you used a low side only gauge, that is pretty crude and may not give a good indication. A better indicator is window on the receiver/drier if you have one. Look for foam or clear stream. A few bubbles are OK, but steady foam means low charge. Low side should be 25-30 psi w/ engine at 1500 rpm, car in shade and cabin reasonably cool. Best way to charge is to recover charge, vacuum system, and reinstall correct amount (32-34 oz R12). I could always get about 40F on my 90EX.

good luck