Our air-conditioner has been making a rattling noise as it turns off for several weeks now. Not only have the service technicians been unable to figure out the problem, but we were told we were on the schedule and they didn't show up. Then, instead of doing a check up, which we were due for under our service contract, which would have been covered under the contract, we were charged for the visit and the problem was not corrected. We are now waiting for the company to call back, so yet a fourth visit can be made determine and rectify the problem.
