A/C not cooling and ABS light now staying on

Honda Accord EX 1995, 4 cylinder, 149,182 mileage

My A/C unit recently stopped and was just blowing hot air. We put in a new compressor, o-rings, relay switch, replaced the fan, and added freon. The A/C unit worked for 3 days and stopped cooling again. We took the car back in and the fan had stopped working once again. The wiring was redone and the system began cooling once again. However, once again 3 days later the system is no longer cooling. I took the car to a well known auto shop and had them run system checks on the A/C unit. They identified all the items that we have replaced but also suggested that there could be leakage in hoses. However, another repair shop could not locate any leakage in the hoses. So, it has now been suggested that the hoses, and a new dryer be added. The fan continues to go out so do you think that this could be the real problem?

Also, just today the ABS light came on and has stayed on all day. What is the possible causes of this and where would you advise that I take a car for testing the system?