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Volkswagen Golf Mk7 Service & Repair Manual: Low-pressure switch for air conditioning system -F73

The low-pressure switch -F73- switches off the Volkswagen Golf Mk7 AC compressor if refrigerant circuit pressure drops to approximately 2 bar — protecting the compressor from running dry.

Function:
In the event of pressure loss in the refrigerant circuit, switches the air conditioner compressor off (at approx. 2 bar).
 

Low-pressure switch for air conditioning system -F73

    Questions & answers

    Low-pressure switch for air conditioning system -F73 — Volkswagen Golf Mk7

    What does the Golf Mk7 AC low-pressure switch -F73- do?
    Switches off the compressor if refrigerant pressure drops too low (indicating a leak or empty circuit), protecting the compressor from running dry.
    Switch and sender in refrigerant circuit and related connections
      Note See vehicle-specific refrigerant circuit for switching pressures, removing and fitting switches, together with switch arrangement and versions. ...

    Connections to valves for switches in the refrigerant circuit
      WARNING Danger of freezing injuries. If refrigerant circuit has not been evacuated, refri ...

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