Ottawa summers can be intense, and when a heatwave strikes, your air conditioner becomes essential to staying comfortable. But If your AC fails in the middle of a heatwave, it can be more than just uncomfortable. It can be dangerous. That’s why we’ve put together these expert tips to help you handle an AC failure quickly and safely.
Step 1: Check the Thermostat
Start with the simplest fix. Make sure your thermostat is set to “cool” and that the temperature is set lower than the current indoor temperature. Sometimes, the system might have been switched off or set to “heat” by accident. If your thermostat uses batteries, try replacing them. A malfunctioning thermostat can prevent your AC from turning on altogether.
Step 2: Inspect the Circuit Breaker
An AC fail is often caused by a tripped circuit breaker. Head to your electrical panel and check the breaker labeled for your air conditioner. If it is in the middle position or switched off, turn it off completely, then back on. If the breaker trips again after resetting, there may be an underlying electrical issue that needs professional attention. Avoid repeated resets.
Step 3: Examine the Air Filter
A dirty or clogged air filter can block airflow and cause your AC to shut down. Take a look at the A/C filter and see if it appears dusty or discoloured. If it does, replace it. During heavy use in the summer, filters should be checked and replaced every month to prevent strain on your system and keep the air flowing freely.
Step 4: Look for Ice or Blockages
Check for ice buildup on the indoor unit or refrigerant lines. If you see any, switch the system off and allow it to thaw before trying to restart it. Also inspect the outdoor unit for debris like leaves, dirt, or anything that might block airflow. Proper ventilation around the condenser is essential for efficient cooling.
Step 5: Still No Cool Air? Call Team Harding
If your AC still is not working after trying these basic steps, it is time to call the experts. Heatwaves can make an AC fail especially serious for young children, seniors, or anyone with health conditions. Our certified HVAC technicians are ready for emergency AC repair and will work quickly to restore comfort to your home.
Stay Safe and Stay Cool
Whether the issue is electrical, a refrigerant leak, a faulty compressor, or something else entirely, do not risk DIY fixes beyond these basic checks. For safe, fast, and reliable emergency AC repair, reach out to Team Harding. We are here to help, especially when it matters most.
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Team Harding has been Ottawa’s leading home comfort specialist since 1994. We are a family-owned and operated local business and all of our installers and technicians are fully licensed.
