The Most Common AC Problems Homeowners Face in Cranbrook, BC

It doesn’t get much better than a warm summer afternoon in Cranbrook, but when temperatures soar, we still count on reliable air conditioning. Even the best cooling systems can experience issues over time, so understanding some common AC problems could help you spot issues early and keep your home cool and comfortable.

High Point Plumbing, Air Conditioning, and Heating Repair is a leader in expert AC repairs in Cranbrook, BC, so we know how this province’s seasonal shifts and dry climate affect HVAC systems. Here’s a closer look at what can go wrong and how to prevent big repairs. 

1. Thermostat Issues Are the Most Frequent Concern

One of the most common starting points for air conditioning trouble is your indoor thermostat. It’s the master control for your air conditioner, so thermostat problems can cause it to run at the wrong times, cool unevenly, or stop working altogether.

In Cranbrook, where temperatures can jump from a pleasant 18°C to over 30°C in a day, inaccurate readings or functions quickly make a home uncomfortable. An outdated or miscalibrated thermostat, or one too close to sunlight or heat sources, may misread the actual room temperature. That leads to poor cooling cycles, unnecessary wear on your system, and, ultimately, high energy bills. 

Often, a simple upgrade to a programmable or smart thermostat solves problems while promoting more consistent indoor comfort.

2. Poor Airflow Causes Uneven Cooling  

Restricted airflow causes weak air circulation or certain rooms to stay warmer than others. This is one of the common AC problems in Cranbrook, especially in older homes. It also affects properties with ductwork originally designed only for heating, not cooling. 

Poor airflow can stem from:

• Blocked or dirty ducts filling with dust from the area’s dry climate
• Malfunctioning blower motors, which impede circulating air
• Dirty air filters restricting airflow
• Leaks in the ductwork allowing cooled air to escape into walls or attics

Cranbrook’s open landscapes and periodic dust storms require ductwork to be inspected every few years. You’ll also need to change or clean air filters more frequently.

3. Frozen Evaporator Coil? Here’s Why It Happens in Cranbrook

While counterintuitive, frozen evaporator coils often happen during the hottest summer days. The coil must have a steady flow of warm air to absorb indoor heat properly. Any airflow restriction will mean the coil gets too cold and quickly freezes over.

Frozen coils reduce cooling efficiency and risk serious damage to your compressor. If you notice ice buildup or water pooling around your air conditioning unit, shut it off and call your local HVAC expert. Changing air filters regularly also helps.

4. Refrigerant Leaks Are a Serious Problem in Cranbrook’s Climate

Seasonal temperature swings, from chilly winters to hot summers, place significant stress on AC lines and seals. Many common AC problems occur if cracks form, especially if refrigerant, the lifeblood of your air conditioning system, leaks out. 

When refrigerant levels fall below a certain level, your cooling system will struggle to work properly. You may hear the hissing or whistling sounds associated with escaping gases near your outdoor unit. You’re also likely to see ice or frost on your unit’s indoor coil, as discussed above. 

Simply refilling refrigerant doesn’t solve the underlying problem. Always have leaks professionally repaired to maintain efficiency and avoid environmental harm.

5. Dirty Air Filters Are a Leading Cause of Air Conditioning Problems  

Our prairies produce dry air and occasional wildfire smoke that can rapidly clog air filters. Dirty filters restrict essential airflow, which forces your system to work much harder to move air through the unit and your living space. Of all the common AC problems on this list, dirty air filters are both the most prevalent during our service calls and the easiest to prevent.

Inspect filters monthly (or more frequently) if: 

• You have pets.
• You live near open fields.
• You are in an area where dust is more prevalent. 

Replace the HVAC filters at least every 30 to 90 days throughout the year.