I live in a 3 story condo complex. I am on the first floor. Part of my AC system is on the roof of the complex and the other part is in the ceiling of one of my bathrooms.
I have a problem with our system: It will be working fine and then suddenly stop cooling and upon inspection be drained of coolant. The part above the bathroom will freeze over then melt dripping water down. This has happened many times.
Leak obviously right? Okay well here we go.
I have had an AC repairman who has been in the business for over 20 years who has come to check my system. He has never found a leak. At one point he upgraded my system so it uses the new coolant (U.S.A. laws or something) because he found a micro leak in that part of it but still not a big enough leak to explain the pattern of coolant dissipating.
He has come out and recharged my system with coolant multiple times. The schedule of the leak makes no sense.
The system can cool for as short as 4 days and it has cooled for as long as 6 months before needing a recharge. There is no period where the AC goes from cooling to a gradual reduction in cooling. No it just stops cooling, you can hear the ice melt, and bam back at square one.
He has run every test and has not found a leak. In all of his years he says he has never had a leak like this before and he has no idea what is going on or what is happening.
The biggest parts of the mystery are:
1) If it was a leak, would the system not experience a gradual reduction in effectiveness?
2) If it was a leak, would it not leak out on a consistent time schedule?
3) If it was a leak, would it not be detectable by the multiple means he has used?
4) And one last question: Does the weather affect any potential leaks and their severity? Is there something I am missing?
Thanks in advance!
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