HELP! I had a technician come out and inspect the valve and said it needed to be repaired. We had the repair done 7 days later and our AC had been working fine until today, seven days after the repair. They are now telling us that since we use dour AC for the seven days between when it was diagnosed and it was repaired, that are motor fan broke. Why would my AC work for a solid 7 days after the repair if this was the case? Also, why wouldn't they tell us not to use the AC until it was fixed? they are looking to charge $300 for the labor... does this all seem fair?