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Product Specifications:
| Item | Furnace Control Board |
| Application | Commercial, Furnaces And Heating Units, Hvac, Lp/Natural Gas Furnaces, Residential |
| Board Type | Integrated |
| Compatible Blower Motor Type | Permanent Split Capacitor |
| Compatible Inducer Motor Type | Permanent Split Capacitor |
| Compatible With Brand | Lennox, White-Rodgers |
| Control Mounting Type | Standoff |
| Control Voltage | 25V |
| Cool Blower Off Delay Setting | 45 sec. |
| Cool Blower On Delay Setting | 2 sec. |
| Furnace Control Functions | Cool, Heat |
| Heat Blower Off Delay Setting | 60 Sec., 90 Sec., 120 Sec., 180 Sec. |
| Heat Blower On Delay Setting | 45 sec. |
| Igniter Voltage | 80V AC |
| Ignition Type | Hot Surface Igniter |
| Includes | Ecmx Motor Control, Psc, Variable Speed |
| Input Voltage | 25V AC |
| Items Controlled | Air Cleaners, Blowers, Gas Valves, Humidifiers, Ignitors, Inducers |
| Max. Relative Humidity | 93% |
| Maximum Operating Temperature | 175°F |
| Minimum Operating Temperature | -40°F |
| Minimum Relative Humidity | 5% |
| No. Of Speed Taps | 3 |
| Number Of Stages | 1 |
| Product Type | Replacement Control Board |
| Replacement For Oem Brand | Lennox, White Rodgers |
| Replacement For Oem Part No. | 100925-01, 100925-03, 10M9301, 12L6901, 17W9201, 21D83M-843, 23W5101, 24L8501, 30W2501, 32M8801, 50A62-120, 50A62-121, 50A62-820, 50A65-120, 50A65-121, 50A66-122, 50A66-123, 56L8401, 63K8901, 69M0801, 69M1501, 83M00, 97L4801 |
| Replacement Type | Oem |
| Terminal Designations | C, R, W, Y G |
| Twinning Compatibility | Not Twinning Compatible |
| Type | OEM Replacement |
Shipping Info:
| Ship weight (kg) | 0.73 |
| Ship height (cm) | 6.35 |
| Ship length (cm) | 29.21 |
| Ship width (cm) | 19.56 |
| HS code | 9032896025 |
| Country of Origin | MX |
Product Details:
- Supercedes Lennox Models 10M9031, 12L6901, 32M8801, 56L8401, 24L501, 63K8901, 97L4801, 100925-01, 17W9201, 23W5101, 30W2501, 69M0801, 69M1501, 83M00, White Rodgers Models 50A65-120, 50A62-121, 21D83M-843, 50A66-122, 5066-123, 50A65-121, 50A62-120, 50A62-820
Product Variants
| Product | Model | Input Voltage | Control Voltage | Type | Price | |
|---|---|---|---|---|---|---|
![]() |
50T35-743 | 24V AC | 24V | OEM Replacement | €268.72 | |
![]() |
50M56U-751 | 25V AC | 25V | OEM Replacement | €289.07 | |
![]() |
50A65-5165 | 25V AC | 25V | OEM Replacement | €216.22 | |
![]() |
50A56-956 | 25V AC | 25V | OEM Replacement | €226.44 | |
![]() |
50A55-3797 | 25V AC | 25V | OEM Replacement | €235.35 | |
![]() |
50M56X843 | - | - | - | €392.35 |
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Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
WHITE-RODGERS 21D83M-843 Furnace Control Board
€415.86 /unit

