High-Pressure Cutoff Switch

2007 Ford Fusion SEL, 2.3 Z, StandardSECTION High-Pressure Cutoff Switch
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The high-pressure cutoff switch is installed on the compressor-to-condenser discharge line to interrupt A/C compressor operation in the event of high system discharge pressures.

  • The high-pressure cutoff switch is mounted on a Schrader-type valve fitting on the A/C compressor discharge line.
  • A valve depressor, located inside the threaded end of the high-pressure cutoff switch, presses on the Schrader valve stem.
  • This allows the high-pressure cutoff switch to monitor the compressor discharge pressure.
  • When the A/C compressor discharge pressure rises, the switch contacts open, disengaging the A/C compressor. When the pressure drops, the contacts close to allow operation of the A/C compressor. Refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS article.
  • It is not necessary to recover the refrigerant to remove the high-pressure cutoff switch.
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