The r/f/wc I put in was badly damaged and compressors were cut and taken.Jeff

Then id bring a smaller air compressor to blow off dust after sanding, and give it a quick blowing before sanding to remove leaves and what not.

Purchase price 147KListed for 299K, sold for 285 (went under contract for 290 but dropped it another 5K at buyer request after the appraisal just to get out of the deal)Home Depot credit card: 10K (appliances, fixtures and other things we picked out and purchased ourselves rather than having GC use typical builder grade stuff, also husband did some of the work himself so bought his own materials)Brought 40K of our own cash to the closing table, loan total when paid back was 185 (original loan 175 plus 10K in accrued interest, 12 month balloon loan so we did not have to make payments during the rehab, which helped a lot with cash flow, also loan had rehab costs folded in so for the most part we paid our guys out of the loan and not our own pockets)So (numbers are round): 285 sale price - 185 (loan payback) - 40 (cash we brought to closing) - 10 (Home Depot card) - 10 (closing costs) = 40K profitWork done: insulation and vinyl siding (this ate 18K of rehab budget but was unavoidable as cedar shakes were disintegrating), converted to natural gas heat (ducts already in place, changed out electric hot air blower to gas one and gas company ran the gas from the street for free), replaced AC compressor, new water heater, two new bathrooms, replacement windows, new appliances but left the wood cabinets b/c they were in perfect condition and I could not justify painting/replacing them, new kitchen backsplash, removed wall between kitchen and dining room, wood laminate flooring throughout except for new carpet in downstairs den, painted the deck/railings, new garage doors, one new slider, all solid wood interior panel doors, of course fresh paint and new light fixtures throughout.dining roomThere was moisture damage downstairs from bank not winterizing and pipes bursting...thanks, bank.Hauled out enormous old woodstove and broke up ugly old hearth and left good flue for someone to add new pellet or woodstove to if they want to, we figured not everyone wants a woodstove and this way the buyer can decide to add one back if desiredBathroom off downstairs den, chose a walk in shower for variety, hosing off dog or muddy children, disabled access, etc. 

The tech says the compressor is gone bad , unit is too old and says it needs entire unit replaced a AWUF Airhandler and GSZ13 heat pump, Looking for some quality HVAC tech references that could help me diagnose the problem properly and fix the part rather then replace the unit.

It's nice to hook up some air compressor nozzles.

Hey JordanReduce your cost dramatically your in Texas so your mostly non-union hire some guys to do the tear off you can get that done for around 600 bucks buy 16 squares of asphalt shingling  have it delivered, hire a guy with an air compressor and nailer offer him 35 bucks a square he'll be done in less than 3 hrs.

It would be nice to have not only everything new, but add a nice selling feature for tenants, but I'd need to find out how much "not that much more" will be after he gets me the quote.We added central air to a 175K BTu 95%AFUE gas furnace which was essentially a heat-pump core and drainage tray installed in the plenum of the air-handler with the compressor outside  We only use it for central air, but have the option of using it for heat in the shoulder seasons (gas and electricity are comparable in price here).  

If it was 100 outside, the compressors should be able to put 70 degrees in the house; whether it can keep it (insulation, attic ventilation, etc) is another story.At my house, on a 95 degree day with almost 100% humidity, my unit has no trouble keeping the temperature in the house 72 degrees or lower.

Turn water om and go section by section opening g valves and checking for damage.If you really don't want make a mess you can use an air compressor and fill it with air.  

4 large two bedroom apartments with all new windows, HVAC but with two missing compressors; we could fix that; all new appliances and individual hot water heaters.