Universal Air SW11218C HVAC Binary Switch

Universal Air Binary HVAC Switch for Miata

Universal Air SW11218C is a Binary HPCO/LPCO switch for HVAC refrigerant control. It is listed for 1990-1993 Mazda Miata applications and is used in systems that require high-pressure cutout and low-pressure cutout switching.

Key Features

• Binary HPCO/LPCO HVAC switch for refrigerant circuit protection
• Fits 1990-1993 Mazda Miata, N/A
• Direct-fit application coverage for Mazda Miata HVAC service work
• Part number SW11218C for ordering and catalog lookup

Product Details

This Universal Air Binary HPCO/LPCO Switch is built for HVAC systems that monitor refrigerant pressure and trigger cutout functions when pressure moves outside the normal operating range. For 1990-1993 Mazda Miata service, SW11218C provides the correct switch type for pressure-based HVAC control. If you are searching for a Mazda Miata HVAC binary switch, Miata refrigerant pressure switch, or SW11218C replacement, this part matches the listed application.

Common Issues It Addresses

• HVAC compressor cycling caused by pressure switch failure
• Loss of refrigerant pressure signal to the control circuit
• Compressor shutdown from a worn or inaccurate binary switch
• Air conditioning operation problems tied to high- or low-pressure cutout logic

Installation Notes

Verify the existing switch style and connector match before installation. Confirm refrigerant system condition and pressure readings during service, then install the switch in the correct HVAC circuit location for the vehicle. For best results, compare the original part number and application details against SW11218C before final assembly.

Quality Assurance

Universal Air catalogs this Binary HPCO/LPCO Switch under part number SW11218C for the listed Mazda Miata applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.