Emergency Services Services After Hours

Why Does My Air Conditioner Keep Running?

It is natural to have concerns about energy and cost waste if your air conditioner continuously runs and never seems to shut off. Several factors and system malfunctions can be responsible for this that requires a professional assessment of your HVAC system.

Is it normal for an Air conditioner to run all day?

No. Even when the temperature and humidity are very high, your AC unit should not run continuously. Cooling cycles, on average, should last for 15-20 minutes per hour with the highest point of the set thermostat temperature and the lowest point of the room temperature is reached, the condenser should shut down, ending the cooling cycle.

Continuous running of an air conditioner generates electricity and wastes costs. It will further damage other components of your HVAC system that are now working continuously.

Why is your air conditioner running all day?

Many factors and malfunctions can cause power failure in your HVAC system that requires professional assessment.

1. Electrical malfunctions

Faulty wires, short circuits, and faulty fuses can keep the condenser running continuously, disturbing the cooling cycles of your HVAC system. A technician will help in the analysis and replacement of the faulty switch.

2. Faulty thermostat

The build-up of dust and dirt from the air on the thermostat can cause a faulty reading of the room temperature, which overloads your condenser and it runs continuously. Ideally, you should make regular service appointments and replace your thermostat in 10 years to prevent an HVAC malfunction.

3. Faulty fan

Faulty switches can keep the fan running even when the condenser is off. This will keep your AC unit running with minimum cooling. A technician will help you identify these malfunctions and correct the fan settings.

4. Dirty condenser and condenser coils

A condenser is a part of your HVAC system that compresses the hot gas and converts the refrigerant into a liquid state that helps in the cooling process. A condenser coil absorbs all the heat-dissipating in the system. Over time, dust and debris accumulate on its surface, which reduces its cooling capacity. The condenser runs over time to maintain the cooling cycle, which causes excess wear and tear on the machinery.

5. Frozen evaporator coils

Excess dirt, dust, and clogged filters prevent evaporator coils from receiving heat. As a result, the condensation of the cooling process occurs on the surface of the coil in the form of ice, frost, and extreme stages of ice ledge.

What should you do if your Air Conditioner is continuously running?

Here are a few settings to check if your Air Conditioner is continuously running:

1. Adjust the thermostat settings

Set the thermostat temperature a few degrees above the room temperature, which will trigger the condenser top to shut off to complete the cooling cycle.

2. Adjust thermostat fan settings.

Check your fan settings and set them in AUTO mode. This will trigger your fan to shut off with the condenser to complete the cooling cycle.

3. Clean dust and dirt off the air filter and blower fan

Switch off your HVAC system before cleaning, use water and brush and contact your technician for a professional cleaning service.

If your air conditioner is running continuously and you cannot fix it, don’t worry. We can help. Call us to schedule a professional service and assess your HVAC system.