| Compatible Brand | For LENNOX |
| Item Thickness | 1 in |
| Power Source | Corded Electric |
| Compatible Model | 21D83M-843 |
| Material | Plastic |
| MPN | 56L8401 |
| Compatible Product | Central Furnace |
| Item Length | 6 in |
| Power Phase | 1 Phase |
| Brand | LENNOX |
| Type | Furnace Control Board |
| Unit Type | Unit |
| Manufacturer Warranty | 1 Year |
| Voltage | 24 V |
| Amperage | 50 A |
| Model | 50A66-843 |
| Country Of Origin | Mexico |
| Item Weight | 1 lb |
This was not even installed and we decided to replace the whole unit. TheLennox 56L8401 (also known as the White-Rodgers 50A65-120 or SureLight 56L84) is an. Ignition Type: Hot Surface Ignition (. System Monitoring: Continuously monitors, analyzes, and regulates the gas ignition sequence. ).