We had a Gree mini-split system installed in our condo located in the SF Bay Area in 2016. Since the location of the 3 units (both bedrooms and living room) are not mounted on external walls, Sauermann SI-30 condensation pumps were installed in the attic. Within the first month, one of the pumps needed to be replaced as it had failed, causing damage to the wall below the unit. Apparently, the tech forgot to dampen the vibration with the rubber mat when he reattached the new pump to the attic floor. So, I decided to hang this pump and the other two ~ 1ft above the attic floor instead (increased pump lift from ~3 ft to ~4 ft)
We have recently noticed the paint has bubbled along the wall directly below two of the units, which seems to indicate some leakage within the unit. It's not certain whether the pumps have failed. I have read great reviews of the Aspen Micro V pump for being super quiet and very reliable. Would appreciate any advice as to whether the SI-30 pumps should be replaced with these Aspen pumps and also if they should be relocated within each unit rather than in the attic, not certain whether extreme heat in attic might be causing pumps to fail! Also would appreciate any referral for a good tech in the SF Bay Area to call to do the work!