| Item Thickness | 1 in |
| Product Type: | HVAC Control Board |
| MPN | 10M9301, 21D83M-843 |
| Year Manufactured | 2026 |
| Item Length | 7.5 in |
| Blower Motor: | 3-speed fan support |
| Power Phase | 1 Phase |
| Unit Type | Unit |
| Manufacturer Warranty | 1 Year |
| Voltage | 24 V |
| Amperage | 50 A |
| Item Width | 5-5/8 in |
| Brand | Nationwide |
| Type | Furnace Control Board |
| Model | 21D83M-843 |
| Country Of Origin | China |
| Item Weight | 1 lb |
| UPC | 786710547065 |
Lennox Gas Furnace / G40UH Series / 100925-01, 100925-03, 12L6901, 17W9201, 23W5101, 24L8501, 30W2501, 32M8801, 56L8401, 63K8901, 69M0801, 69M1501, 83M00, and 97L4801. Replaces Lennox OE Numbers: 10M9301, 32M8801, 56L8401, 24L8501, 63K8901, 97L4801, 100925-01, 100925-03, 17W9201, 23W5101, 30W2501, 69M0801, 69M1501, 83M00.