ICP NAC048AKA1 condensing unit Parts

Replacing a central AC system typically costs about $6,000 on average, with many full replacements landing in the $1,500 to $12,500 range depending on system size (tons/BTU), efficiency (SEER), ductwork condition, electrical upgrades, and local labor rates. For your Icp NAC048AKA1 condensing unit, the installed price is driven mostly by the matched indoor coil/air handler and the installation scope; see the NAC048AKA1 installation guide for requirements that can affect labor and code compliance.

What drives the price up or down

• Capacity and sizing: Larger homes and higher tonnage systems cost more.
• Efficiency level (SEER): Higher-efficiency equipment and compatible components raise equipment cost.
• Ductwork work: Repairs, sealing, or resizing can add significant labor.
• Electrical and controls: Disconnect, breaker, wiring, and thermostat upgrades can add cost.
• Indoor components: Replacing the evaporator coil, air handler, or furnace alongside the outdoor unit increases total price.
• Permits and code compliance: Local requirements can add time and materials.

Typical replacement scenarios (cost comparison)

Replacement scope	What’s included	Typical cost range
Outdoor unit only	Condensing unit swap, basic start-up	$1,500 to $5,000
Full system	Outdoor unit plus indoor coil/air handler, refrigerant work	$5,000 to $12,500
Full system plus ductwork	Full system plus duct repairs or replacement	$8,000 to $15,000+

When a repair makes more sense than replacement

If the system is otherwise in good shape, a targeted repair can restore cooling at a much lower cost than a full change-out. Common service items on condensing units include:

• Capacitor (hard starting, humming, fan not spinning)
• Contactor (unit will not start, intermittent operation)
• Wiring issues (burnt terminals, loose connections)

If you’re troubleshooting a no-start or weak-start issue, the capacitor 1172120 is one of the most common wear parts to check and replace.

Why it matters

A properly sized, correctly matched system (outdoor unit plus indoor coil) helps control humidity, reduces short-cycling, and can lower operating costs. Installation quality and code-compliant setup often matter as much as the equipment itself.

For replacement parts and common repair items for Icp NAC048AKA1, we list model-matched parts on this page; you can also search by model number on Sears PartsDirect.

Last updated: February 2026

Most central air conditioning units last 15 to 20 years with normal use and regular maintenance. For your Icp NAC048AKA1 condensing unit, keeping the outdoor coil clean, maintaining correct airflow indoors, and having yearly service helps you reach the full expected lifespan (and helps protect warranty coverage); see the owner's manual.

Typical lifespan ranges (what we see most often)

• 15 to 20 years: well-maintained central AC systems
• 10 to 15 years: systems with inconsistent maintenance or harsh operating conditions
• 20+ years: possible, but efficiency and reliability usually decline

What shortens (or extends) AC life

• Dirty condenser coil or blocked airflow around the outdoor unit
• Weak electrical components (for example a failing run capacitor)
• Refrigerant charge issues (low charge or restrictions)
• Oversized or undersized system that short-cycles or runs constantly
• Skipped annual maintenance and delayed repairs

Maintenance checklist we recommend

• Shut off power and clear leaves, grass, and debris from the cabinet area
• Keep at least 24 inches of clearance around the outdoor unit for airflow
• Replace or clean the indoor air filter on schedule
• Rinse the outdoor coil gently (avoid bending fins)
• Have a qualified technician perform yearly service (the manual notes proof of yearly service may be required for warranty claims)

Common age-related symptoms and likely areas to check

Symptom	Common cause	What to check first
Outdoor unit hums but fan will not start	Weak capacitor	Test/replace the capacitor 1172120
Clicking, chattering, or no start	Worn contactor	Inspect the contactor and wiring connections
Runs but cools poorly	Dirty coil, airflow issue, charge problem	Clean coil, verify filter and vents, then schedule service
Breaker trips	Electrical short, failing motor, compressor issue	Stop use and have it diagnosed

Why it matters

Knowing the typical lifespan helps you plan repairs versus replacement. A 15 to 20 year old unit can still run, but small electrical parts (like a capacitor or contactor) often fail first; addressing those early can prevent no-cool breakdowns during peak heat.

You can order replacement parts for your NAC048AKA1 from the parts list for this model, or search by model number on Sears PartsDirect.

Last updated: February 2026

On an Icp NAC048AKA1 central air conditioner condensing unit, the most common failure we see is the run capacitor because it handles frequent starts and heat stress. A weak or failed capacitor can keep the condenser fan or compressor from starting, even when the thermostat is calling for cooling.

Most common failures (and what you’ll notice)

• Capacitor: outdoor unit hums, fan will not start, compressor struggles to start
• Contactor: outdoor unit will not run, intermittent operation, chattering or buzzing at the electrical compartment
• Wiring/terminals: burnt connectors, melted insulation, intermittent shutdowns
• Condenser fan motor issues: fan runs slow, stops randomly, unit overheats and shuts down
• Dirty condenser coil: poor cooling, high head pressure symptoms, frequent cycling

For model-specific wiring and service notes, use the NAC048AKA1 owner's manual.

Parts on this model that commonly solve “won’t start” symptoms

If your NAC048AKA1 outdoor unit is not starting or is starting hard, these are the first parts we check and replace most often:

Symptom	Most likely part	Part on this page	Typical next step
Hums but fan/compressor will not start	Capacitor	Capacitor 1172120	Test capacitance; replace if out of spec
No outdoor operation at all	Contactor	Contactor (listed on this model page)	Verify 24V signal; inspect contacts
Intermittent operation	Plug wire or loose connection	Plug wire 1083654	Inspect for heat damage; repair/replace

Why the capacitor fails so often

Capacitors are electrical “storage” components that help start and run the compressor and condenser fan. Heat, age, and voltage spikes gradually weaken them; once they drift out of spec, the motor may not start reliably and can overheat.

Safety and service notes we follow

Central air conditioner electrical components can hold a charge even with power off.

• Shut off power at the disconnect and breaker before opening the panel
• Discharge the capacitor properly before handling it
• Take a photo of wire positions before moving anything
• Replace any burnt terminals, not just the failed part
• If the compressor will not start after capacitor replacement, stop and have the system professionally diagnosed

You can order replacement parts for your NAC048AKA1 from the parts list for this model, or search by model number on Sears PartsDirect.

Last updated: February 2026

On most central AC systems, the compressor is typically the most expensive single component to replace because it is the main pump that moves refrigerant through the system. For the Icp NAC048AKA1 condensing unit, the compressor is also the costliest repair in most real-world scenarios; always confirm coverage and requirements in the owner's manual.

Typical “most expensive” AC parts (ranked)

In many central air conditioner repairs, costs stack up from both the part and the labor involved.

• Compressor: highest part cost; refrigerant handling and system cleanup add labor
• Coils (condenser coil or evaporator coil): expensive parts; leaks can require major disassembly
• Control board (if equipped): can be pricey on some systems, especially proprietary boards
• Refrigerant leak repair: not always a single part, but can become a high-cost job
• Electrical start components: usually cheaper than the items above, but common failures

How this relates to your Icp NAC048AKA1

Your documentation calls out many “functional component parts” that can be covered under certain warranty terms when installation and yearly maintenance requirements are met. That list includes items like the condenser coil, evaporator coil, capacitor, and contactors. Review the exact terms and maintenance requirements in the owner's manual.

Common replaceable parts we see for this model

These are often replaced more frequently than a compressor and are usually far less expensive.

Part type	What it does	Typical symptom when failing
Capacitor	Helps start and run the compressor/fan motors	Humming, hard starts, fan not spinning
Contactor	Switches high voltage to the outdoor unit	Outdoor unit will not start, chattering
Plug wire	Electrical connection lead	Intermittent operation, visible damage

If you are troubleshooting a no-cool or no-start issue, checking the capacitor 1172120 and the contactor is a common first step.

Why it matters

Replacing a compressor or coil can approach the cost of a major system repair because it often involves refrigerant recovery, leak checks, and careful electrical diagnostics. Catching small electrical failures early (capacitor, contactor, wiring) can prevent bigger damage.

Last updated: February 2026