The compressor is the heart of your air conditioning system. When it malfunctions, it can seriously disrupt your cooling performance and result in higher energy bills or total system shutdown. If you’re facing AC compressor issues, understanding what to expect during repair—and how to prepare—can help reduce stress and avoid unexpected costs.
How an AC Compressor Works
Your AC compressor is responsible for pressurizing refrigerant and pumping it through the cooling cycle. It sits in the outdoor unit and plays a critical role in transferring heat from inside your home to the outside. Without it, your system simply won’t cool properly.
Signs Your AC Compressor Needs Repair
- Warm air blowing from vents: The system isn’t cooling as expected.
- Unusual noises: Clanking, grinding, or hissing sounds coming from the outdoor unit.
- Tripped breakers: Compressor failure can overload circuits.
- System frequently shuts off: Short cycling or hard starts can indicate compressor trouble.
- Refrigerant leaks: A damaged compressor can lead to low refrigerant pressure.
What to Expect During Compressor Repair
Not all compressor issues require a full replacement. Here’s what the repair process typically involves:
1. Diagnostic Visit
A certified HVAC technician will inspect the unit, test refrigerant pressure, check electrical components, and determine whether the compressor is failing or another issue is at play.
2. Cost Estimate
Repair costs vary based on the compressor type, unit size, and warranty coverage. Replacing a compressor is often one of the most expensive AC repairs—ranging from $1,200 to $3,000+ in BC.
3. Timeline for Repair
Most repairs take a few hours to a full day, depending on system accessibility and part availability.
4. Full System Evaluation
If your system is 10+ years old, the technician may recommend evaluating whether a full unit replacement makes more financial sense—especially if efficiency is poor or rebates apply.
How to Prepare for Compressor Service
- Clear debris and trim vegetation around the outdoor unit for technician access.
- Turn off the system at the thermostat and breaker before service if instructed.
- Keep pets indoors and ensure someone 18+ is home to approve any repair decisions.
- Ask about warranty status—some compressor parts may be covered for up to 10 years.
Repair or Replace? Making the Right Call
If your compressor is still under warranty and your system is in good shape, repair may be your best option. But if the unit is aging or you’re facing repeated issues, replacement could be more cost-effective—especially with rebates available in BC for high-efficiency systems.
Ask your HVAC technician for a comparison of repair vs. replacement costs and long-term savings. Rebates through CleanBC Better Homes and FortisBC may help offset upgrade costs.
Frequently Asked Questions About AC Compressor Repair
Can a compressor be repaired or only replaced?
In some cases, damaged components like valves or wiring can be repaired. But if the compressor motor fails, replacement is usually required.
How long should an AC compressor last?
Most compressors last 10–15 years with regular maintenance, though poor installation or overheating can shorten their lifespan.
Will I need to replace refrigerant too?
Yes—if your system uses outdated R-22 refrigerant, it may require a full retrofit or replacement with a modern R-410A system.
What’s the average repair cost in BC?
Compressor repair or replacement can range from $1,200–$3,500+, depending on system size and brand. Ask your HVAC pro for a site-specific quote.
Expert Compressor Repair in the Lower Mainland
At Pro West Heating & Air Conditioning, we provide fast, reliable AC compressor repair services across Coquitlam and the Lower Mainland. We help homeowners determine the best course of action for comfort, cost, and long-term performance.
📞 Contact us today at 604-990-7550 to schedule a diagnostic visit or get help with a non-cooling system.