Symptom Table
WARNING: This page is about a different variant/trim than selected.
Follow the next table and perform trouble diagnosis if there is a compressor unit malfunction (internal noise, insufficient cooling).
| Symptom | Inspection method | Check list | Result | Action | ||||
|---|---|---|---|---|---|---|---|---|
| Noise from compressor unit When A/C is ON. (rattling or rolling sound) |
Cooker system internal pressure | Check with manifold gauge | Both high- and low-pressure sides are high.(2) | Recharge with proper amount of refrigerant. | ||||
| High/low-pressures hunt.(2) | Replace compressor only. | |||||||
| Check compressor oil condition. | Sample compressor oil and judge. | Refer to the criteria shown in compressor lubricant. | Diagnostic result 1: Replace compressor only. Diagnostic result 2: Replace compressor and liquid tank. |
|||||
| Insufficient cooling(1) | Compressor body | Check rotation of compressor. If sized or stuck, sample compressor oil and judge. | ||||||
| Cooler system internal pressure | Check with a manifold gauge. Sample compressor oil and judge if the difference between high-pressure and low-pressure is small or if they are almost the same. | |||||||
| Outlet air temperature rises temporarily while driving.(2) | - | - | - | Replace compressor only. | ||||
|
||||||||