Expert guide to compressor replacement process, timeline, and what to expect. Make informed decisions about your AC system.
Confirm compressor failure and assess system condition
Safe shutdown and refrigerant recovery
Disconnect and remove failed compressor
Clean system to prevent contamination
Install and connect new compressor
Vacuum, recharge, and verify operation
The entire compressor replacement typically takes 4-8 hours from start to finish. Factors that affect duration include system accessibility, whether lines need flushing, and how long the vacuum process takes. Most technicians complete residential replacements in a single day.
Compressor doesn't run even though fan operates
Immediate diagnosis needed
Compressor struggles or clicks when trying to start
Schedule service within 1-2 days
Grinding, clanking, or screaming sounds from outdoor unit
Turn off immediately, call professional
AC repeatedly trips breaker when starting
Don't keep resetting, get diagnosis
System runs but doesn't cool effectively
Could be compressor or other issues
Sudden increase in electricity costs
May indicate compressor inefficiency
A failing compressor in Las Vegas can leave you without AC during 110°F+ heat. If you notice grinding noises, hard starting, or the system won't cool, get immediate diagnosis. Running a failing compressor can damage other expensive components like the motor windings or contaminate the entire refrigerant system.
Typical Quote Breakdown: A $2,500 compressor replacement usually includes $1,200-1,600 for the compressor itself, $300-500 for refrigerant and filter drier, and $600-800 for 6-8 hours of skilled labor. Additional recommended components can add $400-1,000 to the total.
If compressor replacement costs more than 50% of a new system AND your system is 10+ years old, replacement is usually the smarter investment:
AC compressor replacement takes 4-8 hours for most residential systems. This includes refrigerant recovery (30-60 mins), removal of old compressor (1-2 hours), installation of new unit (1-2 hours), and system testing/recharging (1-2 hours). Most jobs are completed in a single day visit.
You can replace just the compressor in most cases. However, some newer systems have sealed outdoor units where compressor replacement isn't practical, requiring full condenser replacement. Your technician will advise based on your specific model. For systems 10+ years old, replacing the entire outdoor unit or full system often makes more financial sense.
A properly installed compressor typically lasts 10-15 years with regular maintenance. However, Las Vegas' extreme heat (110°F+ summers) can reduce lifespan to 8-12 years due to increased stress. Annual maintenance, monthly filter changes, and keeping outdoor coils clean help maximize compressor life in our desert climate.
Yes, someone should be home for the entire service call. The technician needs access to electrical panels, may need to verify thermostat function, and requires your approval if additional issues are discovered. Plan to be available for 4-8 hours. Most of the work is done outside, but indoor access is needed periodically.
Most compressors come with 5-10 year manufacturer parts warranty (varies by brand). Labor warranty is typically 1 year unless extended warranty is purchased. The warranty usually covers manufacturing defects but not damage from lack of maintenance, electrical issues, or improper installation. Always register your warranty within 60-90 days of installation.
Connect with qualified HVAC professionals in Las Vegas for accurate diagnosis and quotes