Did a warranty inspection for a client about a month ago. Two days ago he sent photos of condensation collecting inside his range exhaust vent. Says he hasn’t used his range in six weeks or so, nor has he turned on the fan. He just happened to take a peek under the filter and notice a significant amount of moisture on the inside and called me asking how it might have gotten there.
This is a roof-vented unit.
Logic dictates that 1. the air inside the unit would have to be humid, and 2. The unit would have to be at or colder than the dewpoint for condensation to form. It has been humid outside lately down here in central TX but the AC has been blowing inside pretty regularly, thus indoor humidity should be lower than outside. We have had a few showers come and go these last few weeks, but nothing that could have blown moisture inside the vent of the unit.
Any of yall ever seen this before?