What is the purpose and location of the pressure cycling switch in A/C systems?

This switch is used only on 2008 and earlier models with accumulators. Later models with receiver/driers don't use a pressure cycling switch. The pressure cycling switch is located on top of the accumulator and detects low refrigerant line pressure at 22 to 28 psi. It switches the A/C system off and then back on again at 40 to 47 psi. If the pressure increases over 550 psi, the pressure cut-off switch shuts the system off. To replace the pressure cycling switch, unplug the electrical connector, unscrew the switch from the accumulator, lubricate the switch o-ring with clean refrigerant oil, screw the new switch onto the accumulator threads until hand tight, and then tighten it securely. Finally, reconnect the electrical connector.

Genuine Ford Escape HVAC Pressure Switch

Air Pressure Switch

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20 HVAC Pressure Switches found

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Ford Escape Switch - Air Condition System - Vacuum
Part Number: 6F9Z-19D594-AA
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2009-2012 Ford Escape | 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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- Other Name: Valve Assy
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2001-2009 Ford Escape | 4 Cyl 2.0L Zetec EFI, 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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Part Number: BT4Z-19D594-A
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2013-2019 Ford Escape | 4 Cyl 1.5L EcoBoost 16V (180PS), 4 Cyl 1.6L EcoBoost SCTi -Sigma, 4 Cyl 2.0L, 4 Cyl 2.0L EcoBoost (240PS) , 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L Duratec FFV (125kW/170PS) | 6-Speed Automatic Transmission 6F Mid-Range, Four-Wheel Drive, Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Front-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive)
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2005-2006 Ford Escape | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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2001-2006 Ford Escape | 4 Cyl 2.0L Zetec EFI, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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2001-2007 Ford Escape | 4 Cyl 2.0L Zetec EFI, 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Right Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive), Two-Wheel Drive (Right Hand Drive)
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2017-2019 Ford Escape | 4 Cyl 1.5L EcoBoost 16V (180PS), 4 Cyl 2.0L EcoBoost (240PS) , 4 Cyl 2.5L Duratec FFV (125kW/170PS) | 6-Speed Automatic Transmission 6F Mid-Range, Four-Wheel Drive, Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Front-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive)
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Fits the following Vehicles:
2013-2019 Ford Escape | 4 Cyl 1.5L EcoBoost 16V (180PS), 4 Cyl 1.6L EcoBoost SCTi -Sigma, 4 Cyl 2.0L, 4 Cyl 2.0L EcoBoost (240PS) , 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L Duratec FFV (125kW/170PS) | 6-Speed Automatic Transmission 6F Mid-Range, Four-Wheel Drive, Four-Wheel Drive (Part Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Front-Wheel Drive (Right Hand Drive), Left Hand Drive, Two-Wheel Drive (Left Hand Drive)
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Fits the following Vehicles:
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2010-2012 Ford Escape | 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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2005-2009 Ford Escape | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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2007 Ford Escape | 6 Cyl 3.0L DOHC EFI Modular | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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2008-2012 Ford Escape | 4 Cyl 2.3L, 4 Cyl 2.3L Hybrid Gas/Electric DOHC, 4 Cyl 2.5L Duratec (110kW/150PS), 4 Cyl 2.5L PFI Gas/Electric, 6 Cyl 3.0L DOHC EFI Modular, 6 Cyl 3.0L OHC Duratec | 4AT CD4E, 5-Speed Manual Transmission - AK, 6-Speed Automatic Transmission 6F Mid-Range, CVT Auto Trans Powersplit Elec, Four-Wheel Drive (Full Time) (Left Hand Drive), Front-Wheel Drive (Left Hand Drive), Left Hand Drive
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Ford Escape HVAC Pressure Switch Parts Questions & Answers

Valve Assembly - Pressure Relief
4L3Z-19D644-A
Q: What is the purpose and location of the pressure cycling switch in A/C systems?
A: This switch is used only on 2008 and earlier models with accumulators. Later models with receiver/driers don't use a pressure cycling switch. The pressure cycling switch is located on top of the accumulator and detects low refrigerant line pressure at 22 to 28 psi. It switches the A/C system off and then back on again at 40 to 47 psi. If the pressure increases over 550 psi, the pressure cut-off switch shuts the system off. To replace the pressure cycling switch, unplug the electrical connector, unscrew the switch from the accumulator, lubricate the switch o-ring with clean refrigerant oil, screw the new switch onto the accumulator threads until hand tight, and then tighten it securely. Finally, reconnect the electrical connector.