AC Maintenance & Repair
Frideric Prandecki, Co-Owner
September 9, 2025
Open 7 Days a Week! Request An Appointment
Vegas Homeowner Guide
Internal coil corrosion from trapped moisture
Debris circulating through the refrigerant lines
Furnace and air handler door seals that leak
Wrong refrigerant charge running for years
Check any that match. Two or more, and it’s time for a diagnostic – not another guess.
These four causes account for most calls like this we run across the Las Vegas Valley – Summerlin, Henderson, Spring Valley, and everywhere in between.
When a system isn’t properly vacuumed, microscopic moisture stays trapped in the refrigerant lines. In a Vegas system that cycles 10+ hours a day, that moisture combines with refrigerant and lubricant to form acid. The acid eats the copper from the inside until you get pinhole leaks — typically in years 5 to 8, right after the warranty expires.
Sand, copper shavings, oxidation flakes from poor brazing — anything left inside the system at install becomes a permanent passenger. Every cycle, that debris rides past the expansion valve and metering device. Eventually it scores the compressor walls or jams the metering device, and you’re paying for a $4,000 part because someone skipped a $50 flush 8 years ago.
The blower compartment is supposed to be airtight. When the door gaskets aren’t seated properly, unfiltered attic air gets pulled through the cabinet, past the coil, and through the blower. Dirty coils freeze faster. Dirty blowers run hotter. Both fail 30 to 50% earlier than properly sealed units, and you’d never know to check. A seasonal AC maintenance plan catches these issues before they shorten the system’s life.
A system overcharged or undercharged from day one doesn’t fail right away — it fails 5 to 10 years sooner than it should. Vegas heat masks the symptoms in cooling season, so most homeowners never realize their AC has run outside spec from the start until the compressor finally seizes. Capacity drops slowly enough that you blame “the heat getting worse.”
From Summerlin to Henderson, here is how we’re keeping homes across the Las Vegas Valley cool and comfortable.
This homeowner in Las Vegas contacted Bob’s Repair for cooling issues on an older R-22 air conditioning system.
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We diagnose on-site, photograph what we find, and walk you through it before we recommend a single repair.
Every part and labor line itemized before we start. If we find something extra mid-job, we stop and call you before adding a dollar.
We fix the part that's failing. If a $40 capacitor solves it, that's the job — not a $1,200 replacement you didn't need.
We run the system, take a reading, and confirm the symptom that brought us out is gone. If it isn't, we stay and keep working.
What does an AC failure look like before it happens? In this video, Bob's Repair catches a hidden issue at the exact moment a system goes from "running fine" to a complete refrigerant leak — the kind of failure that would have left this Las Vegas family stranded in a 115° house if they'd waited until July. It's the case for getting your system checked before the summer heatwave, not during it.
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Did your AC installer flush the refrigerant lines — and what happens if they didn't? Watch what comes blasting out of this old system's copper lines: contamination that, if left behind, gets pumped straight into a brand-new unit and puts your new compressor in trouble. Bob's Repair calls skipping the line flush "the $10,000 shortcut," and this video shows exactly why.
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What's the two-minute install step 90% of HVAC installers skip? Sealing the furnace door — factory doors aren't airtight, and the leaks cost you pressure, pull in dust, and force the system to run longer to do the same job. In this video, Bob's Repair shows why they hand-seal every furnace door with metal foil tape, a small detail that keeps 100% of the air inside the system where it belongs.
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What's the one step that makes or breaks a new AC installation? Flushing the refrigerant lines — it prevents contamination, oil mixing, and long-term system failure, yet most companies skip it to save time. In this video, Bob's Repair walks through how (and why) they flush every line on every Las Vegas install, so your new system doesn't inherit the old system's problems.
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