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Why AC Failures Hit Harder During a Calgary Heat Wave
AC failures become more disruptive during a Calgary heat wave because systems move quickly from months of light use to sustained peak demand. Existing electrical, airflow, refrigerant, or component problems can surface at the same time many other homes need service. Calling when symptoms first appear can reduce the chance of a complete cooling loss.
Sudden Peak Demand
Calgary AC systems can sit idle for months and then run hard during a short stretch of hot weather.
Compressed Repair Windows
When a heat wave hits, many homes need service at the same time. Calling early gives the best chance at same-day availability.
Older Units Meeting Newer Demand
Older AC systems may struggle with current comfort expectations, especially in homes with additions, new windows, or changed layouts.
Is It Worth Repairing, or Time to Replace?
AC repair is often reasonable for a younger, reliable system with a contained problem. Replacement deserves comparison when the unit is older, uses obsolete refrigerant, needs a major component, or has repeated failures. The decision should compare the written repair price with equipment age, condition, comfort performance, warranty coverage, and expected future costs.
| Situation | What it often means | Next step |
|---|---|---|
| AC under 10 years old | A targeted repair often makes sense if the system has been reliable. | Repair is usually worth comparing first. |
| AC 10+ years old and repair approaches $900 | Larger repair costs can make replacement worth reviewing. | Ask for repair vs replacement options. |
| Compressor failure on older unit | This can be one of the most expensive AC repairs. | Request a written replacement comparison. |
| System uses R-22 or older refrigerant | Older refrigerants and aging parts can raise repair difficulty and cost. | Compare replacement options. |
Frequently Asked Questions
What should I check before calling for AC repairs?
Check the thermostat, breaker, furnace switch, filter, and outdoor disconnect. Make sure the outdoor unit is clear of debris. If the AC still will not cool properly, book a diagnostic.
Why is my AC running but not cooling?
Common causes include low refrigerant, a dirty or frozen coil, weak airflow, a failed capacitor, or control issues. A technician needs to test the system to confirm the cause.
Is it safe to keep running an AC with ice on the coil?
No. Turn the system off and let it thaw. Running an iced-up system can make the problem worse.
Can you repair AC units you did not install?
Yes. We repair many major AC brands, whether Alberta Mountain Air installed the unit or not.
Do AC repairs come with a warranty?
Changed parts include a 1-year warranty on the new part, unless an active manufacturer warranty still applies. If manufacturer coverage is active, the repair follows that warranty.
Can I try to recharge my own refrigerant?
No. Refrigerant work requires proper training, tools, and certification. If the system is low, the leak or underlying cause should be diagnosed.
