Honda Accord: A/C System Inspection - Heating/Air Conditioning - Heating, Ventilation, and Air Conditioning - Honda Accord MK8 2008-2012 Service ManualHonda Accord: A/C System Inspection

Before troubleshooting any problem with the air conditioning system, do the following: 1. With the ignition switch in LOCK (0), inspect the A/C components, the pressure lines and the hoses for stains that may indicate a refrigerant or a compressor oil leak.

2. Check the A/C condenser for material clogging the


2. Check the A/C condenser for material clogging the fins or for damage to the fins: • Carefully clean any material from the A/C condenser fins with water and detergent. If deeper cleaning is required, clean the fins with Hondabrite Motorcycle Cleaner (P/N 08732-0032).

• Be sure to dry the A/C condenser (A) completely.

• - Refer to the refrigerant leak test (see page 21-82) to confirm leaks if there is visible damage to the A/C condenser.

3. Inspect the drive belt (see page 4-29).


3. Inspect the drive belt (see page 4-29).

4. Make sure no material is blocking the airflow to the A/C condenser.

5. Check the dust and pollen filter, and replace it if it is clogged (see page 21-79).

6. Check for kinks or sharp bends in the A/C lines and hoses, which can greatly reduce system performance.

Replace the A/C lines and hoses if they are kinked or damaged (see page 21-7).

7. Start the engine, turn the air conditioning system on, and allow it to run for a few minutes and reach stable operation.

8. Check that the A/C operates at each position of the blower fan switch (except OFF). If the A/C does not operate, refer to the symptom troubleshooting.

9. Check that the A/C compressor clutch (A) is engaged.

The pressure plate should be rotating at the same c n a o r i Р’В»c t h e pii Hey. !f the prcecurР’В© plate does not engage, refer to the symptom troubleshooting.

10. Check that the cooling fans (B) operate when the A/C


10. Check that the cooling fans (B) operate when the A/C compressor clutch is engaged. If either fan fails to . operate when the A/C compressor clutch is engaged, refer to the symptom troubleshooting.

11. Check that the engine idle speed is correct when the A/C is switched on and off, and when the A/C compressor clutch is engaged and disengaged.

    A/C Line Replacement
    1.Discharge hose to the A /C compressor (6 x 1.0 mm): S.8 N-m (1.0 kgf-m, 7.2 Ibf-ft) 2.Discharge hose to the A /C condenser (6x1.Р’В© mm): 9.8 N-m f 1.0 kgf-m, 7.2 Ibf-ft) 3.Receiver lin ...

    General Troubleshooting Information
    How to Use the Self-diagnostic Function The HVAC control unit has a self-diagnostic function for the heating, ventilation, and air conditioning system. To run the self-diagnostic function, do the ...

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