OEM Lennox iComfort S30 Smart Thermostat — 19V30
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The genuine OEM Lennox 19V30 iComfort S30 Ultra Smart Programmable Thermostat is the intelligent control center for compatible Lennox communicating comfort systems. With a full-color touchscreen, Wi-Fi connectivity, and remote app control, it manages heating, cooling, humidity, and multi-stage or variable-capacity equipment while adapting to your schedule for precise, energy-efficient comfort.
When a thermostat like the 19V30 fails, homeowners often experience a blank or unresponsive display, dropped Wi-Fi or app connectivity, communication-fault codes with the indoor or outdoor unit, incorrect temperature readings, or a system that no longer stages properly. Because the S30 communicates digitally with Lennox equipment, control problems can affect the entire system's operation.
OEM matters because the iComfort S30 platform uses Lennox's proprietary communicating protocol to talk directly with compatible furnaces, air handlers, and condensers. A non-Lennox thermostat cannot access this variable-capacity control, diagnostics, or dealer features. This factory-authorized 19V30 ensures full compatibility and unlocks the advanced comfort and efficiency your Lennox iComfort-enabled system was designed to deliver.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days