![Lennox 20W37 Limit Switch, 120-160°F Auto Reset specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-20w37-specs.png?v=1794088759&width=1445)
This Lennox 20W37 limit switch is a genuine Lennox replacement part that monitors furnace temperature and shuts down the burner if the heat exchanger overheats, helping protect the system from damage. It is an automatic-reset switch rated to open and close within a 120°F to 160°F range. Confirm the part number against your equipment's parts list before ordering.
Specifications
| Part Number | 20W37 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Temperature Range | 120-160°F |
| Reset Type | Automatic |