Installation guide
What is the most expensive part to replace on an AC unit?
On most central AC condensing units, including the Icp HAC036AKA1, the compressor is typically the most expensive component to replace because it is the core of the refrigerant-compression and circulation process. Labor and refrigerant handling often add significantly to the total cost.
The compressor is a sealed, high-load mechanical and electrical component. Replacing it commonly involves more than swapping a part.
- Requires opening the sealed refrigerant system
- Typically includes evacuation, dehydration, and precise recharging
- Often involves brazing/soldering and leak checking
- May require replacing related electrical parts if they contributed to the failure
- Downtime and diagnostic time are usually higher than for fan or electrical repairs
While the compressor is usually the top cost, these repairs can also be expensive depending on what failed and how long the system ran with the problem.
| Repair area | Why it can get expensive | Common symptoms |
|---|---|---|
| Compressor | Major sealed-system repair plus labor | Hums then trips breaker, won’t start, poor cooling |
| Condenser fan motor | Higher-priced motor plus labor | Fan not spinning, overheating, short cycling |
| Electrical controls (contactor, capacitor) | Lower part cost, but can cause bigger damage if ignored | Clicking, hard starting, intermittent operation |
For this model, we stock common electrical and airflow parts such as the central air conditioner condenser fan motor 1086598, cap rn rp 1172095, and contactor (part number 1050699).
Because outdoor units carry high voltage and moving fan blades, we follow the safety guidance in the installation guide and recommend these checks before any major replacement.
- Shut off power at the disconnect and verify with a meter
- Inspect wiring and terminals for heat damage
- Test the run capacitor and contactor operation
- Confirm the condenser fan runs freely and the blade is secure
- If a compressor is suspected, have a qualified technician confirm with electrical and refrigerant-side diagnostics
A failed capacitor or contactor can mimic a compressor failure. Catching an electrical issue early can prevent overheating and avoid turning a smaller repair into a major compressor replacement.
For ordering, use the parts list for Icp HAC036AKA1 on this page, or search by model number on Sears PartsDirect.
Last updated: February 2026
Can I replace AC parts myself?
Yes, you can replace some parts on the Icp HAC036AKA1 condensing unit yourself, but we only recommend DIY work limited to basic maintenance and straightforward component swaps after power is fully shut off. Refrigerant-line work, charging, and sealed-system repairs should be handled by a qualified HVAC technician.
- Shut off power at the disconnect and breaker, then verify power is off before touching wiring
- Replace a failed contactor if you label wires and move one wire at a time
- Replace the condenser fan motor when the mounting and wiring connections match
- Replace the condenser fan blade when the size, pitch, and rotation match
- Replace a run capacitor when the microfarad (uF) rating matches the original
The HAC036AKA1 installation guidance covers refrigerant piping practices and service valve sealing that require specialized tools and leak-checking. Avoid DIY work involving:
- Opening the refrigerant circuit or leaving lines open to the atmosphere
- Refrigerant recovery, evacuation, or charging
- Changing restrictor orifices at the indoor coil match
- High-voltage wiring changes at the disconnect, breaker, or service panel
| Task | DIY-friendly? | Why it is risky when done wrong |
|---|---|---|
| Replace contactor | Often yes | Miswiring can damage controls or prevent starting |
| Replace capacitor | Often yes | Wrong rating can overheat the motor or cause hard starts |
| Replace fan motor/blade | Sometimes | Incorrect match can cause vibration, noise, or overheating |
| Refrigerant line work/charging | No | Requires sealed-system procedures and proper test equipment |
- Central air conditioner condenser fan motor 1086598
- Central air conditioner condenser fan blade 1085958
- Cap rn rp 1172095
This central air conditioner combines high voltage with a sealed refrigerant system. The installation guide emphasizes shutting off electric power before wiring work and keeping refrigeration lines sealed; following those practices prevents safety hazards and performance problems.
For ordering, we list model-matched replacement parts for HAC036AKA1 on this page, and you can also search by model number on Sears PartsDirect.
Last updated: February 2026
What AC parts are most commonly replaced?
For the Icp HAC036AKA1 condensing unit, the most commonly replaced items are electrical start/control parts and outdoor fan components. These parts handle frequent starts and harsh outdoor heat, so they are often replaced during no-cool, intermittent-cool, or noisy-operation service.
From the parts available for HAC036AKA1, these are frequent replacements:
- Cap rn rp 1172095 (run capacitor that helps motors start and run)
- Central air conditioner condenser fan motor 1086598 (moves air across the condenser coil)
- Central air conditioner condenser fan blade 1085958 (pushes air; can crack, bend, or loosen)
- Contactor (switches high voltage to the compressor and fan; match by part listing details)
- Plug wire 1083654 (wiring can be damaged by heat, vibration, or corrosion)
Use this to narrow down what to inspect first.
| Symptom at the outdoor unit | Most likely part(s) to check | What you may notice |
|---|---|---|
| Unit will not start | Capacitor, contactor | Humming, no fan movement, no steady run |
| Fan runs but cooling is weak | Fan motor, fan blade | Poor heat exhaust, unit sounds strained |
| Starts sometimes, then stops | Capacitor, contactor | Works after reset, fails on hot afternoons |
| Rattling or vibration noise | Fan blade, fan motor | Wobble, scraping, or loud airflow noise |
Following the setup guidance helps prevent repeat failures and refrigerant issues. The installation guide emphasizes keeping refrigerant lines sealed until connection, avoiding kinks, and supporting and insulating lines to reduce vibration wear.
Replacing the correct wear part restores airflow and proper starting torque; that reduces overheating stress on the compressor and helps the system cool consistently.
You can order replacement parts from the parts list for HAC036AKA1, or search by model on Sears PartsDirect if you need additional items.
Last updated: February 2026
