Execution order
1. Start the engine and let it run at 1500 rpm.
2. Turn the A/C switch to the ON position.
3. Set the temperature control knob to the coldest position.
4. Set the fan control knob to maximum speed.
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5. After 5 minutes, check whether the amount of refrigerant is sufficient according to the following table.
Check point | Amount of refrigerant | |||
Too little | Not enough | Fine | Too much | |
| Temperature of high and low pressure pipes | There is almost no difference in temperature between high and low pressure tubes | The tube on the high pressure side is warm and the tube on the low pressure side is cold | The tube on the high pressure side is hot and the tube on the low pressure side is cold | The high pressure side pipe is too hot |
| Repair | Stop the compressor and perform a complete check | Check for leaks, fix them and recharge the air conditioning system | The high pressure side pipe is too hot | |