Hello, I am hoping someone can help with a problem I am having evacuating a new ACIQ heat pump. I have performed a Nitrogen pressure test at 290 psi with zero psi drop after 30 minutes. No leaks found. However for the vacuum test I can only pull down to approx 700 microns and when I isolate the system it raises to approx 1700 and holds there. Using CPS micron gauge with Schrader core removed on low side. I have tested my entire vacuum system by placing a shut off valve on the end of the core removal tool that connects to the ac port and can easily pull down to 300 microns and hold there when I isolate from the vacuum pump. I am at wits end trying to figure why I cannot pull down below 500 microns and stay close to that value once isolated from the pump. Not comfortable releasing the Freon with this high micron level. Any suggestions? Thank you.

Looking for help troubleshooting a New Cooper and Hunter 12k R410a mini split freon pressures are good but only getting slightly cool air 60* out of the unit. any ideas?

Condensation issues - Flashes 'FL' and compressor stops cooling until I pull drain plug and put bucket underneath, which lets the water drain and the unit returns to cooling normally. I think there's a pump which may have failed due to blockage. Any info on how to open / inspect / repair?

See picture - both lines drop water when AC is running. Any ideas on what the cause is or is this normal? Any suggestions on what do about this? Thanks

a/c leasking on thr basement floor ,only on the right side ,I clean the drainwhere the water goe to the main drain, and now, i by passsed the drain pipe to a 5 gallon bucket so the wayer doesnt go on the floor. I even open up to see the coils and clean the drain that goes to the drain pipe, but that only last 2-3 days and then it gets backed up.Ieven pured vinger in the drain pipe and nothing.even thouhjt it is hot and humit out,i checked in the morning and seen that there is a gallon of water.Imlost on this issue , any ideas way??