Description
Lennox 10W35 High Pressure Switch Overview
The Lennox 10W35 is a 590 PSI manual reset (M/R) high pressure switch engineered to protect refrigerant circuits from dangerous over-pressure conditions. Designed as a genuine Lennox OEM replacement component, this switch provides dependable, fail-safe operation in residential and light commercial HVAC systems. When system pressure exceeds the rated threshold, the switch opens the circuit and requires a manual reset — ensuring a technician inspects the system before it is returned to service.
Key Features
- 590 PSI rated cutout pressure for high-pressure circuit protection
- Manual reset (M/R) design requires technician intervention before restart
- Genuine Lennox OEM replacement part (SKU: 10W35)
- Protects compressor and refrigerant circuit from over-pressure damage
- Built for reliable, long-term performance in demanding HVAC applications
- Direct OEM replacement for compatible Lennox equipment
Applications
- Lennox residential and light commercial air conditioning systems
- Refrigerant circuit over-pressure protection
- Compressor safety control applications
Why Choose the Lennox 10W35?
Using a genuine OEM high pressure switch ensures proper fit, function, and system compatibility. The manual reset feature adds an important layer of safety — preventing automatic restart after a high-pressure fault and reducing the risk of repeat compressor damage. Trust the Lennox 10W35 to keep your system protected and operating within safe pressure limits.







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