I have an issue with a noise that my unit makes. I have had you out to check it several times. The techs tell me they can't do anything unless it makes the noise while they are here. At times my unit sounds like a jackhammer. I feel it will eventually blow up. You can check with past service techs about this. They have speculated on what it could be, but that is it.
Mary and I appreciate the excellent service that was provided and your quick response for...