![Lennox 29M18 Limit Switch, 155°F — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-29m18-card.png?v=1794100791&width=1946)
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Lennox 29M18 Limit Switch, 155°F
Lennox 29M18 Limit Switch, 155°F
Regular price
$12.24 USD
Regular price
Sale price
$12.24 USD
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Low stock: 1 left
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SKU:29M18
View full details![Lennox 29M18 Limit Switch, 155°F — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-29m18-card.png?v=1794100791&width=1445)
![Lennox 29M18 Limit Switch, 155°F specifications — New England Supply House [NESH-SPECTABLE-V1]](http://newenglandsupplyhouse.com/cdn/shop/files/nesh-29m18-specs.png?v=1794100792&width=1445)
The Lennox 29M18 is a limit switch that monitors furnace plenum temperature, opening at 155°F with a 40°F differential to shut off the burner and protect the heat exchanger from overheating, then resetting as the unit cools. This is a genuine Lennox replacement part.
Confirm this part number matches your equipment's parts list before ordering.
Specifications
| Part Number | 29M18 |
|---|---|
| Brand | Lennox |
| Type | Limit Switch |
| Opens At | 155°F |
| Differential | 40°F |