As the days grow longer and the weather warms up, it's that time of year when we start to turn on our air conditioners, perhaps for the first time since last summer. There's nothing quite like the comfort of cool, conditioned air on a warm day. However, it can be quite frustrating to flip the switch only to find that your unit isn’t working as expected.
But don’t worry! Many common air conditioner issues can be solved with a few simple troubleshooting and maintenance steps. Often, these fixes don't require professional intervention, saving you time and money. Let’s explore some handy tips to ensure your cooling system is in top shape for the season.
Here is a list of common air conditioner issues and tips on how you can try to fix them at home (If you are uncertain how to do this, call Pinnacle Heating and Air Conditioning to schedule a visit to look at your furnace and air conditioner system)
Dirty or Clogged Air Filters:
Problem: Reduced airflow, leading to less efficiency and more strain on the system.
Fix: Regularly check and replace or clean air filters every 1-3 months, depending on usage and type of filter.
Tip: The best type of air filter for the summer is a lightweight one such as a fiberglass filter similar to the one below. It allows air to flow through easier so there is less strain on the furnace.
Frozen Evaporator Coils:
Problem: Coils freeze, and the system either doesn’t cool or stops working entirely.
Fix: Check for airflow issues like dirty filters or blocked vents. If the air filter is dirty, replace the air filter and turn off the unit to let the ice melt. Avoid running the AC again until the cause of the problem is resolved.
Thermostat Issues:
Problem: The air conditioner isn't cooling properly or is behaving erratically.
Fix: Ensure the thermostat is on, set to the correct mode (cooling), and has working batteries. Also, check that it’s not affected by direct sunlight or heat sources that could skew temperature readings.
Clogged Drain Line:
Problem: Water leaks around the furnace or air handler.
Fix: Use a wet/dry vacuum to suck any clog out from the drain line outside your home, or use vinegar to flush the line and keep it clear.
Dirty Condenser Coils (outside unit):
Problem: Reduced cooling efficiency and potential system overheating.
Fix: Turn off the power to the unit and gently wash the coils with a garden hose, avoiding high-pressure water that can bend the fins. For heavy grime, a coil cleaner can be used.
Insufficient Coolant:
Problem: The air conditioner blows warm air.
Fix: Check for signs of coolant leaks (ice formation on the coils and hissing sounds are common indicators). Recharging or repairing coolant lines, however, typically requires a professional.
Faulty Fans:
Problem: Poor airflow, insufficient cooling, or compressor overheating.
Fix: Check for debris around fan blades, ensure they move freely, and listen for unusual sounds. Lubricate motors and check belts for wear and tension.
Tripped Breakers or Blown Fuses:
Problem: AC won’t turn on.
Fix: Check the circuit breaker and ensure it hasn’t tripped. If the AC trips the breaker repeatedly, it indicates a more serious electrical issue.
Dirty or Blocked Air Vents:
Problem: Reduced airflow and efficiency.
Fix: Regularly vacuum the vents and make sure they are not blocked by furniture or drapes.
Improper Sizing or Installation:
Problem: Inefficient cooling and excessive wear on the AC system.
Fix: This issue generally requires a professional evaluation. If the AC unit is too big or too small, it may need to be replaced.
If you are still having problems getting your house to cool, call Pinnacle Heating and Air Conditioning at 720-338-7037 to schedule a diagnostic visit for your AC system or Book Online here. If you want to learn more about Pinnacle Heating and Air Conditioning's air conditioning services, visit our Cooling Page.
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