R32 4Motion V6-3.2L (CBRA) (2008)
High Pressure Safety Valve HVAC: Testing and Inspection
Pressure Relieve Valve On A/C Compressor, Checking
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Function: protects refrigerant circuit against excessive pressure.
CAUTION:
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There is a danger of ice-up.
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Pressure relief valve will drain refrigerant with engine running and high pressure in refrigerant circuit.
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Turn engine off.
Checking check valve on A/C compressor (Denso)
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The pressure relief valve - arrow - has operated when refrigerant oil is found in the close vicinity.
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In this case, vehicle must be taken to an A/C specialist workshop