Four Seasons HVAC Binary Switch P/N:36571
Help protect your A/C compressor from running at unsafe refrigerant pressures with the Four Seasons HVAC Binary Switch, part number 20926, a system-mounted binary pressure switch built for vehicle-specific applications. It fits many vehicles, among them the 1988-1991 Honda Civic, 1986-1989 Honda Accord and 1988-1991 Honda Prelude, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list and engine details.
A binary switch monitors refrigerant pressure in the A/C system and is designed to interrupt the compressor circuit when pressure falls too low or climbs too high. If a failed switch is why your compressor won't engage or your A/C blows warm, this unit replaces it.
Four Seasons engineers and tests its products and backs them with more than 50 years of mobile A/C experience.
Interchange: 1551014 · 80440SD4003 · 80440SD4013 · 80440SD4305 · 207750 · 11120926 · 19188162 · 1711467 · 80440SE0003 · A07750 · MT0350 · SW10001 · SW10001C
This part cross-references / interchanges with the following part numbers:
Is this the right A/C switch for a 1988-1991 Honda Civic?
It is a direct-fit replacement for the 1988-1991 Honda Civic, and it also fits the 1986-1989 Honda Accord and 1988-1991 Honda Prelude. Check the "Vehicles it fits" section to confirm your exact vehicle.
What does an HVAC binary pressure switch do?
It monitors refrigerant pressure. It is designed to cut power to the A/C compressor circuit when pressure is too low or too high, which helps protect the compressor.
What comes with the Four Seasons 20926?
It includes the gaskets, O-rings, or seals required to properly replace the switch. The switch is zinc coated to resist corrosion and color coded for easy identification.
What are signs a binary switch may need replacing?
Signs may include an A/C compressor that won't engage, warm air from the vents, or erratic compressor cycling. These can have other causes, so diagnose the system before replacing the switch.
Is the switch difficult to install?
The switch mounts on the refrigerant system, so follow the vehicle service procedure. Refrigerant handling may require recovery equipment and a qualified technician.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.