เครื่องปรับอากาศ 12V 6PK สําหรับ Renault Duster / Clio / Megane / Scenic / Kangoo / Logan / Nissan

RC.600.146 Air Conditioner For MODELO SD7V16 For RENAULT For DUSTER CLIO For MEGANE SCENIC KANGOO LOGAN For NISSAN 2012 VOLTS - 6PK WXRN023​

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How to Determine if an Automotive A/C Compressor Needs Replacement

1. Weak or No Cooling

Symptom: The A/C blows warm or mildly cool air despite being set to maximum cooling.

Possible Cause:

Low refrigerant due to leaks (check for oily residue around fittings).

Compressor not engaging (failed clutch or internal damage).

2. Unusual Noises

Grinding, Squealing, or Rattling Sounds when the A/C is turned on.

Clutch-related: Worn bearings or slipping clutch.

Internal damage: Broken pistons, valves, or swash plate.

3. Visible Leaks or Damage

Refrigerant/Oil Leaks (green/UV dye traces near compressor seals).

Physical damage (cracks, corrosion, or seized pulley).

4. Compressor Clutch Not Engaging

Test Method:

Start the engine, turn A/C to max, and observe the clutch.

If the center pulley doesn’t spin, check:

Electrical connections (voltage at clutch coil).

Refrigerant pressure (low charge disables clutch).

5. Excessive Vibration or Overheating

Cause: Internal mechanical failure (e.g., broken piston, shaft imbalance).

Risk: Can damage other A/C components (condenser, expansion valve).

6. Metal Debris in the System

Black/gritty refrigerant oil or metal flakes in the A/C lines.

Indicates: Severe internal wear (requires full system flush after replacement).

When to Replace vs. Repair?

✅ Replace the Compressor if:

Internal mechanical failure is confirmed.

Metal contamination is present (to avoid system-wide damage).

The unit is old (>8–10 years) for reliability.