25 common air conditioner problems

Not Cool Enough

• Make sure that the thermostat is set to the temperature you want.
• Clean or get rid of air filters that are dirty.
• Take away any things that are in the way of the outdoor unit.
• If the problem keeps happening, you should talk to a professional.

Not Enough Airflow

• Clean or replace air filters that are clogged up.
• Make sure there are no blocks in the vents and registers.
• Check to see if the blower fan is working right.
• Check to see if any of the ducts are leaking or clogged.

Operation is Noisy

• Fix any screws or bolts that are loose.
• Clean the fan blades and condenser coils.
• If necessary, grease the fan motor or compressor.
• If the noise keeps going on, you should call a professional.

Refrigerant Leaks

• Look for stains that look like oil or refrigerant.
• Call a professional to find the leak and fix it. Then, have the refrigerant topped off.

Frozen Evaporator Coils

• Check air filters and clean them.
• Make sure there is enough airflow and clear the vents.
• Get help from a professional if the problem keeps coming up.

Issues with the thermostat

• Check that the mode (cooling) and temperature are set correctly.
• If needed, replace the batteries in the thermostat.
• Remove any dust or dirt from the thermostat.

Water Gets Out

• Look for clogs in the condensate drain line.
• Clear away any trash or algae.
• Make sure the installation is level to stop leaks.

Electrical Issues

• Check for blown fuses or circuit breakers that have been tripped.
• Check the wiring for damage or connections that aren’t tight.
• If you need help, hire a professional electrician.

Foul Odours

• Clean or get rid of air filters that are dirty.
• Check the ducts and coils for mould or mildew.
• For a thorough cleaning, use cleaning products or call a professional.

Switching on and off often

• Clean the air filters and make sure the air flows properly.
• Change how the thermostat is set to stop it from cycling quickly.
• If the problem keeps happening, you might need help from a professional.

Cooling in Spots

• Check if any vents or registers are blocked.
• You might want to change how your home’s air is balanced.
• Check with experts for more inspections and solutions.

Inadequate Maintenance

• Schedule regular maintenance by a professional.
• When told to, clean or replace air filters.
• Keep the outdoor unit clean and clear of things.

Warm Air Blown

• Make sure the thermostat is set correctly.
• Clean or get rid of air filters that are dirty.
• Check the compressor or the amount of refrigerant with the help of a professional.

Cycling quickly

• If the air filters are dirty, clean them or get new ones.
• Make sure the airflow is good and the vents are not blocked.
• If the problem doesn’t go away, talk to a professional.

High levels of humidity

• Clean or get rid of air filters that are dirty.
• In addition to the air conditioner, you might want to use a dehumidifier.
• Talk to experts about how to control humidity.

Strange Smells

• Filters should be cleaned or replaced.
• Take out any trash or mould that has grown in the unit.
• For a thorough cleaning, you might need help from a professional.

Electrical Control Failure

• Check to see if any of the fuses or breakers are out.
• Check for damage in the wiring.
• If electrical problems keep happening, you should call a professional.

Problems with the sensor

• Make sure the thermostat sensor is in the right place.
• If the sensor is dirty or has dust on it, clean it.
• If the problem keeps happening, you should call in experts.

Problems with Blower Fans

Check the fan belts to see if they are loose or broken.

Clean the motor and fan blades.

Have a professional look at the fan and fix it if necessary.