Why You Should Upgrade to the Lennox Merit Series 13ACX Air Conditioner

Posted: 2021-08-24

Are you dealing with an old, noisy air conditioner? Does it bother you and rob you of peace of mind? When an AC is working as it should, your air conditioner works almost unnoticed, creating very minimal sounds. But if it begins to be excessively noisy, it means a certain part is loose, something restricts the airflow, or it’s operating with a faulty component.

Investigating a noisy air conditioner can be pretty challenging for an untrained individual because identifying where the noise comes from can involve disassembling the system. To ensure your safety, have a qualified technician check your AC unit. If the damage is severe, and the unit is relatively old, upgrading to a new one might be the better option.

Four Seasons Air Specialists is your trusted HVAC company in North Oaks MN. We offer an array of air conditioners that meet and exceed federal standards for energy efficiency.

3 of the Most Common AC Noises


One of the possible causes of a loud banging or knocking noise from your AC is a loose part in the compressor, which houses the indoor unit. It could be in the crankshaft, connecting the rod or piston pin. Most of the time,it just needs tightening of a few screws, but  on some occasions, it requires a compressor replacement.


This problem usually takes place in older air conditioners that use belts. When the belt begins to wear, it can slip during operation and create a squealing sound. If you have an older system, you will hear the sound from both inside and outside of your home. Replacing the belt usually this problem.


There are several possible reasons for an AC to create a buzzing sound, including a faulty compressor. This part is responsible for pressurizing and cooling the refrigerant in the system. When it produces a buzzing sound, it could mean there’s a problem with the compressor itself.

A faulty contractor relay switch can also cause your AC to buzz. This is a low-voltage switch in the outdoor unit that is controlled by your thermostat. When it goes out, it creates a buzzing noise. Having said that, there could also be other electrical problems, such as loose electrical connections or aging wires.

Features of the Lennox Merit® Series 13ACX Air Conditioner

This air conditioner comes with a 5-Year Limited Warranty on the compressor and 5-Year Limited Warranty on covered components. The 13ACX may be eligible for valuable 10-Year Limited Extended Warranty coverage with product registration.

With a Seasonal Energy Efficiency Ratio (SEER) rating that meets or exceeds 13.00, the Lennox 13ACX air conditioner can save you hundreds of dollars in cooling costs per year, compared to older air conditioners. This air conditioner is a smart choice for homeowners who are looking for affordable and efficient home cooling.

Every component of the 13ACX has proven itself through extensive testing in our research labs. So you can take comfort knowing that your conditioner will deliver reliable performance throughout the cooling season.

The compressor is the part of an air-conditioning unit that pumps refrigerant to deliver the cooling your home needs. The precision scroll compressor found in the 13ACX has been thoroughly tested in harsh conditions to make sure it will provide years of worry-free comfort.

The compressor is the part of an air conditioner that pumps refrigerant to deliver the cooling your home needs. The precision scroll compressor found in the 13ACX has been thoroughly tested in harsh conditions to make sure it will provide years of worry-free comfort.

The 13ACX is compatible with the exclusive Humiditrol® whole-home dehumidification system, for indoor air that feels better – even on sweltering days.

Its precision-balanced direct-drive fan delivers quieter operation and longer equipment life.

With sound levels as low as 76 dB, the 13ACX is much quieter than an old, standard air conditioner.

Its PermaGuard™ Cabinet is a heavy-gauge, galvanized steel construction, louver coil guard, baked-on powder finish, and durable zinc-coated steel base that provides long-lasting protection against rust and corrosion.

Its Chlorine-free R-410A refrigerant provides exceptional comfort without exacting a costly environmental toll.

Tired of Your Noisy AC? Call Four Seasons Air Specialists

To upgrade to a quiet, energy-efficient air conditioner, talk to us. We are your friendly White Bear AC company.