Ameristar AC Review 2021

The quality of an AC largely depends on the manufacturer. Unfortunately, choosing the best among many manufacturers can be tricky, especially if you don’t know what to consider.

In this article, we review the Ameristar brand. 

Perhaps you’re wondering, “is it the right AC brand for me? What is the rating of Ameristar air conditioners?” Read on to find out the answers to these and more questions.

Who Makes Ameristar AC Units?

Ameristar is a subsidiary of Ingersoll Rand, a company headquartered in Davidson, North Carolina, United States. The manufacturer also owns Trane and American Standard brands, both of which also produce HVAC products.

The journey started in 1929 when American Standard was formed. In 2007, it became Trane. The Ameristar brand came much later as a cheaper alternative to Trane and American Standard HVAC products.

Ameristar vs Other Brands

How does Ameristar compare to other competing brands on the market? We will pit it against its sister American Standard as well as Goodman and Bryant brands.

Ameristar vs American Standard

Ameristar features cheaper ACs than American Standard, but the price difference is not that significant. Moreover, it is more expensive to install ACs from American Standard since they are not as compact.

Naturally, American Standard ACs are more energy-efficient since they have higher SEER ratings. That also makes them a cheaper option in the long run.

Ameristar vs Goodman

Which brand of central air conditioner is better between Goodman and Ameristar? Well, it depends on your needs. Air conditioners from Goodman are not as cheap. However, they are not easy to install since they lack factory installer designation.

Still, the AC units from Goodman are reasonably priced. Moreover, they have better warranties. For instance, some models have a lifetime compressor limited warranty.

On the other hand, the Ameristar ac warranty only covers the units for ten years. That reduces to only five years in the absence of warranty registration.

Ameristar vs Bryant

How do Bryant air conditioners compare to Ameristar air conditioners? Both brands feature low-priced products. However, Bryant has a more extensive catalog with 18 models compared to Ameristar’s six.

Air conditioners from Bryant have a relatively higher SEER rating, with the highest having a 26 SEER rating. Meanwhile, the highest SEER for Ameristar is 16.

As far as warranties are concerned, it is not easy to get one from Bryant. That’s because they mainly sell their products to retailers and not directly to consumers.

Is Ameristar A Good AC Unit? (Pros and Cons)

Every HVAC brand has its fair share of advantages and disadvantages, and Ameristar is not an exception. In this section, we look at what gives the brand a competitive edge. We also highlight areas that need improvement.

Pros of Ameristar Air Conditioner

Here are the reasons why you might consider buying from Ameristar.

Low Cost

Ameristar specializes in low-cost entry-level air conditioners. It is an excellent choice if you’re worried about upfront costs. The prices are even lower than sister brands American Standards and Trane.


Ameristar HVAC equipment features a galvanized steel construction, making them sturdy and durable. Moreover, they have a powder paint finish that makes them rust-resistant. This means that an Ameristar AC will age with grace.

Cons of Ameristar Air Conditioner

Ameristar has several drawbacks. They include the following.

Not Energy Efficient

Although the AC units are cheap, they have low SEER ratings. That means you should expect to pay more in running costs. The M4AC3 and A4AC6 models have the highest rating at 16 SEER. But this is hardly sufficient for full-time use in hot climate regions.


Most Ameristar air conditioners are noisy at 76 decibels. That is below the average of 73 decibels for entry-level units. The M4AC6 is the quieter condenser at 67 decibels.

Not Suited for Southern Climates

These entry-level air conditioners are only suited for part-time use owing to their low SEER ratings. Also, they are more suited for northern climates where the average temperatures are not as high.

What’s Unique? (Ameristar Product Line Analysis)

 Ameristar has a product line of six air conditioners. Here is a table detailing the features of all air conditioner units from Ameristar.

AmeristarModel NumbersSEERAvailable SizeCompressorSound Level(dBA)Other Features
A4AC3131.5 ton, 2 ton, 2.5 ton, 3 ton, 3.5 ton, 5 tonscroll compressors76All-aluminum coils;

Smaller size options for tighter spaces;

Pre-painted steel cabinet and base pan;

Assembled in Tyler, Texas
A4AC4141.5 - 5 tonscroll compressors76
A4AC6161.5 - 5 tonscroll compressors76
M4AC3131.5 - 5 tonNA76Painted, galvanized steel cabinets;

Compact design and small footprint;

24V low-voltage control;
M4AC4141.5 - 5 tonNA76
M4AC6161.5 - 5 tonNA67

Three units that start with the letter M are Ameristar’s branded models, while the rest are mass-produced unbranded units. 

All the models are single-stage. That is great if the initial cost is a critical concern. However, single-state models don’t control the indoor temperature as well as their counterparts. So, expect swings in temperatures. Additionally, they won’t remove as much humidity.

Compared with competing brands, all the ac units are smaller in size. That makes them perfect for those tight spaces. It also makes the installation process less hectic, so finding a qualified installer should be easy.

Ameristar Air Conditioner Prices

As mentioned earlier, Ameristar HVAC products are low-cost entry-level units. Furthermore, the installation cost is low since their small size makes the process straightforward. Unfortunately, the running costs will be high, owing to the low SEER ratings.

The unbranded models (A4AC3, A4AC4, and A4AC6) are cheaper than their branded counterparts. However, the price of each unit will depend on the size. For instance, the Ameristar 3 ton ac unit price is lower than that of a 5-ton ac unit.

If you buy the A4AC6 and M4AC6 models, you qualify to get a government tax break. Therefore, you should expect to pay $300 less.

Here is a table detailing the cost of buying, installing, and running Ameristar’s air conditioners.

Ameristar Model NumbersProduct Only PriceInstalled Total costRunning cost
M4AC3$950 - $1890$2950 - $3890$560 - $685
M4AC4$1300 - $2400$2300 - $4400$520 - $640
M4AC6$1625 - $2750$3625 - $4750$410 - $500
A4AC3$1400 - $2500$3400 - $4500$550 - $670
A4AC4$1675 - $2800$3675 - $4800$510 - $625
A4AC6$1950 - $3400$3950 - $5400$400 - $490

What Size Ameristar Central Air Conditioner Do I Need?

Ameristar’s air conditioners are available in seven size options: 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 and 5.0 tons. The following table details each tonnage size and the corresponding room size it can cool.

Ameristar AC Unit SizeConvert to BTURoom Size (sq ft)Available Models
1 ton12,000 BTU600 sq ftAll Models
1.5 ton18,000 BTU900 sq ftAll Models
2 ton24,000 BTU1,200 sq ftAll Models
2.5 ton30,000 BTU1,500 sq ftAll Models
3 ton36,000 BTU1,800 sq ftAll Models
3.5 ton42,000 BTU2,100 sq ftAll Models
4 ton48,000 BTU2,400 sq ftWithout A4AC3
5 ton60,000 BTU3,000 sq ftAll Models

Ameristar AC Parts Maintenance and Problems

Ameristar products are designed to last long. However, proper maintenance is necessary to guarantee a long life. Consider the following maintenance tips to keep your unit performing optimally. Don’t forget to consult the Ameristar air conditioner manual for more.

The following table shows different potential problems that can affect Ameristar AC units and how to solve them.

ProblemCommon reasonsSolutions
Inadequate heating and coolinga) Dirty filtersa)Clean or replace the filters
b) Lack of free airflowb)Check for blockage on the grills and supply resisters
c) Blocked outdoor coilc)Clear away debris from the outdoor coil
Not operatinga) Turned offa)Turn the power on
b)Open circuit breakerb) Reset the circuit breaker
c) Blown out fusesc) Replace blown out fuses
d)Improperly adjusted thermostatd) Hit the ac unit reset button
The Auxiliary indicator is onWhen the outdoor temperatures reduceCall for service if the light stays on continually when the temperature is above 30¡ãF or when the outdoor temperature is 50¡ãF.
Blower not workingBlower door is missing or not closedClose door to blower

Replace the Filters

Clean the filter twice a month, especially if the unit is running continuously. A clean filter will ensure the AC runs efficiently, thus saving you a lot in energy bills.

If you are using replaceable filters, remember to install a new one twice a month as well. Only make sure it is the same size and type as the original. If not sure how to go about it, feel free to consult your dealer.

Call Your Dealer

You can handle the routine maintenance on your own. However, it would be better to call your dealer to make any repairs and adjustments. Otherwise, you risk voiding your warranty.


Are Ameristar air conditioners worth it? Yes. But only if you are looking for low-cost entry-level air conditioners. The units are some of the cheapest on the market.

If efficiency is your main concern, you might consider looking elsewhere. The units have low SEER ratings and may lead to high utility costs, especially if you live in a hot climate region.

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