How long do Amana HVAC systems last?

Most Amana air conditioners and heat pumps run 13 to 18 years, while Amana furnaces typically last 15 to 22 years when serviced annually. After about year 12 the cost of repairs tends to climb and efficiency drops noticeably compared with a current SEER2-rated unit.

Should I repair or replace my old Amana unit?

A common rule of thumb: multiply the repair cost by the age of the system. If that number is over $5,000, replacement usually makes more financial sense. Amana systems older than 12 years that still use R-22 refrigerant are particularly strong replacement candidates because R-22 has been phased out and recharging it has become very expensive.

Amana HVAC Age Lookup Tool

Decode your Amana serial number to find the manufacturing date, system age, and maintenance recommendations. Free and instant. No account needed.

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Finding Your Amana Serial Number

Check these four spots on your HVAC system

Common Locations

Outdoor unit

data plate on the side

Electrical panel

inside the access door

Indoor air handler

inside the cabinet door

Rating plate

top or rear of the unit

What to Look For

White or metallic manufacturer sticker
Labeled "Serial No." or "S/N"
Typically 8–12 characters long
Usually near the model number

Can't find it? Try the electrical access panel on the front of the outdoor unit or inside the air handler cabinet.

Serial Number Examples

Amana

0306M123451209B67890

Positions 1-2 = month, positions 3-4 = year

Don't worry if yours looks different — each brand has multiple formats and our system can decode most variations.

About Amana HVAC Systems

Owned by Daikin Industries

Amana started in 1934, when a group of Iowa farmers formed a cooperative to make appliances for their community. The brand went through multiple owners over the decades. Raytheon held it for a while before Goodman bought the HVAC side in 2001. Daikin then acquired Goodman in 2012, which brought Amana HVAC into the Daikin family.

The Amana appliance brand (refrigerators, washing machines) is entirely separate, owned by Whirlpool. Amana HVAC makes central air conditioners, heat pumps, and gas furnaces, and uses the same serial number format as Goodman: month in positions 1–2, year in positions 3–4.

Common Amana HVAC Models & Series

The most-installed Amana residential systems on the market today, organized by tier. Knowing your series helps narrow down service parts and warranty terms.

Series	Type	Tier	Efficiency	Notes
AVXC20	Air Conditioner	Premium	Up to 24.5 SEER2	Variable-speed inverter; Amana's flagship cooling unit.
ASXC18	Air Conditioner	Mid-range	Up to 18 SEER2	Two-stage compressor with ComfortBridge integration.
ASXN4	Air Conditioner	Entry	Up to 14.3 SEER2	Single-stage scroll; the cost-driven builder unit.
AVZC20	Heat Pump	Premium	Up to 21 SEER2 / 10 HSPF2	Variable-capacity inverter; identical chassis to the Daikin DZ20VC.
AMVM97	Gas Furnace	Premium	Up to 98 AFUE	Modulating gas valve, variable-speed blower.
AMES80	Gas Furnace	Entry	Up to 80 AFUE	Single-stage 80% furnace common in southern installs.

Amana HVAC Quick Facts

Warranty

Amana offers an industry-leading lifetime unit replacement warranty on the compressor of premium AVXC/AVZC equipment to the original homeowner, plus 10 years on parts. Mid-tier ASXC equipment gets 10-year parts and 10-year compressor coverage. Most warranties don't require registration.

Expected Lifespan

AC / Heat pumps: 13 to 18 years
Furnaces: 15 to 22 years

Where It's Built

Daikin's Waller, Texas facility (the 4-million-square-foot Daikin Texas Technology Park, which builds Amana, Goodman, and Daikin residential equipment on the same lines).

Price Positioning

Mid-tier with premium warranty — equipment costs sit between Goodman and Trane, but the lifetime compressor warranty on the AVXC/AVZC line is unique among mainstream brands.

Known Amana Issues to Watch For

A short list of patterns reported on Amana equipment. Most have been addressed with revised designs or service bulletins, but they're useful context if you're diagnosing an older system.

•Pre-2017 Amana ASX13/14 condensers used aluminum-spine evaporator coils that occasionally developed formicary corrosion in homes with new construction off-gassing.
•ComfortNet thermostats from 2014-2017 had a known relay issue causing intermittent fan operation; Daikin issued a free replacement program.
•Amana 80% furnaces (AMES80) installed with long horizontal vent runs sometimes condensate inside the inducer; consult the install manual for max equivalent length.

Amana HVAC FAQs

Amana puts the serial on a vertical white sticker on the upper-left side panel of the outdoor condenser. On furnaces it's inside the upper access door on the right wall. Serials are 10 characters with month/year encoded in the first 4 digits.