Lennox Merit Central Air Conditioners

Lennox Merit Air Conditioner Overview

Today the Lennox Merit Series consists of two air conditioner models: the 13ACX and the 14ACX. The 13ACX has a SEER of 13 while the 14ACX can reach a SEER of 14 and is Energy Star-qualified. The manufacturer calls this series an “economical” option for efficiently cooling your home.

The Merit air conditioners employ a high-efficiency scroll compressor and direct-drive fan. This fan is precision-balanced for longevity and quiet operational noise. Merit units are designed to work with the manufacturer’s indoor dehumidification system, Humiditrol.

The outdoor coil transfers heat efficiently and is protected by a PermaGuard cabinet. This cabinet is made of heavy-gauge galvanized steel and has louvered coil guards. Furthermore, the base pan is protected from corrosion by its zinc-coating.

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Consumer Reviews of Lennox Merit


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #7 of 22 Lennox Air Conditioner
  • 26.67% of customers recommended

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Lennox Merit Air Conditioner Reviews

Showing 11-15 of 15 reviews

"Tired about the unit, problem every summer"

1.0 rating
Very Unsatisfied

I have the AC unit installed in the winter of year 2005, started to use at year 2006, it had problem next year, called service twice that year, since then, it had problem every summer about leaking, I am so tired about the product, I may have to change another new one, but never use Lennox A/C system again.

Johnson Watson

North Carolina

"Excellent air conditioner!"

5.0 rating
Very Satisfied

Its an excellent air conditioner. I am very happy with the price I paid for it.A shorter warranty is especially worth considering if you don't expect to stay in your home for a long time. Its small size also makes it fit in our medium sized house. An oversized air conditioner costs more to buy and cycles on and off more frequently, reducing its efficiency. It uses just the right amount of electricity.

San francisco

"Have had issues with these units starting in year Four!!"

1.0 rating
Very Unsatisfied

I would seriously would rethink any Lennox product in the future and warn homeowners and potential homeowners to be wary. Merit Series units were placed in a $500,000 home by James Customs Homes and I later learned this was a cheap out option. We thought we had a system that with proper maintenance give us at least a decade of worry free service. Hardly, we started replacing parts in as little as 3 1/2 years… mother boards, switches etc. Everything is proprietary part wise, so don't look for your regular HVAC tech to have parts. Everything has to be ordered through Lennox and prices are steep. Can you say revenue stream? We're now in year six and frankly it's more problems. The likelihood of spending thousands of dollars after just 6 years is sickening. Arm yourself with knowledge before buying any product from Lennox. If you're buying new construction, do your homework and make the builder switch out systems if they want to make the sale. I strongly suggest buying equipment where parts can be carried by anyone thus prices for maintenance is lower. Stay away from proprietary systems that forces only their specialty parts. They sell it as ensuring quality, but understand it's a rich revenue stream for years to come for them. As a Real Estate Broker, I intend to educate my clients to make sure they understand what they're buying and what to expect.

Frank Pixley

Charlotte, NC

"Troubled unit"

1.0 rating
Very Unsatisfied

I bought a new house in 2006 and the builder installed a lennox M/N 13HPD-048-230-01 ac/heat pump unit. For tha last 2 years I have spent approximately $350 each year on substandard parts. Last year the repair contractor found a leaky start capacitor. This year the fan motor in the outside unit quit working. The estimated cost to replace the fan motor is $350. The season is just starting so I am afraid of what might be next with a 5 year old unit.

Owen Jones

Bella Vista AR

"Mrs. Chan"

1.0 rating
Very Unsatisfied

We bought a new house and through the builder, we brought Lennox 13acd. The first time we turned it on, it was not working. According to the dealer, the compressor is not working. "This is a "new" air conditioner and it needs to replace the compressor" ???? I called Lennox and all they said is, 'Don't worry, your dealer will look after it!!". Well, point is, this is a "New" air conditioner and it is not working. Why would they call it new when it doesn't work in the first place? In addition, in our old house, we used "RUUD" air conditioner and never had any problem for the past 16 years. I meant no problem, not a single repair call to the dealer or to their head office. If we had a choice, we would definite buy a "RUUD" again. June/2010

Mrs. Chan

Other Merit Reviews

Reviews on Lennox Merit air conditioners are varied. One contributor to an hvac-talk.com discussion forum suggests that this is a bottom-of-the-line unit. He cites problems such as an exposed coil, a stamped top and noisy operation. However, a homeowner posting a review of the product says that the “solidly built” 13ACX is a good value for what it is. Dealers emphasize the need for homeowners to work with a well-respected dealer for a good installation and to understand the details of the warranty.

Merit Warranty

The Lennox websites indicate the unit is covered by a 5-year limited warranty on covered parts and homeowners may be able to purchase a 10-year limited extended warranty. Online registration is required for full warranty terms to apply. Homeowners should discuss warranty information with the dealer for clear details and consider additional purchases that are needed for the warranty to apply.

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