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- Voltage: 24
- Amps AC: 0.45 A
- Input Voltage: 120V AC, 24V AC
- Frequency: 50/60 Hz
- Maximum Operating Temperature: 175 Degrees F
- Control Voltage: 24V AC
Specifications
| Part Number | 21V51U-843 |
| Brand | White-Rodgers |
| Gas Type | LP/NG |
| Width | 5 1/4 in |
| Probe Length | 15 1/2 in |
| Control Volts | 24 V |
| Voltage | 24 |
| Depth | 1 1/4 in |
| Lead Length | 15 1/2 in |
| Height | 8 in |
| Overall Depth | 1 1/4 in |
| Overall Width | 5 1/4 in |
| Overall Height | 8 in |
| Includes | Ignitor |
| Prepurge Time (Sec.) | 15 sec |
| Electrical Connections | 1/4 Spade Terminals And Molex Plugs |
| Amps AC | 0.45 A |
| Electrical Ratings | 24V AC |
| For Use With | Residential, Commercial Heating Equipment |
| Igniter Warm-Up Time (Sec.) | 17 sec |
| Type | Universal Integrated Two-Stage |
| Item | Integrated Furnace Control |
| Retries | 2 |
| Standards | CSA Certified |
| Product Type | Integrated Furnace Control |
| Input Voltage | 120V AC, 24V AC |
| Cool Delay to Fan On | 5 sec |
| Cool Delay to Fan Off | 60 sec |
| Electrical Connection Type | 1/4 in Spade Terminals, Molex Plug |
| Board Type | Integrated Board |
| Number of Retries | 2 |
| Igniter Warm Up Time | 17 sec |
| Thermostat Anticipator Setting | No Thermostat Anticipator |
| Pre-Purge Time | 15 sec |
| Frequency | 50/60 Hz |
| Main Valve Current Output | 1.5 A |
| Lock Out Time | 5 min |
| Compatible with Brand | Goodman, Lennox, Trane, White-Rodgers |
| Heat Delay to Fan Off | 180 sec |
| Number of Fan Speeds | 3 |
| Maximum Input Current | 45 A |
| Maximum Operating Temperature | 175 Degrees F |
| For Fuel Type | LP, Natural Gas |
| OEM Replacement Part Number | See full list of OEM Replacement Part Number 18M9901,20300002,20300004,20300006,20300006S,21V51U-843,49M5901,50V51-243,50V51-288,50V51-289,50V51-290,50V51-507,50V61-120,50V61-143,50V61-288,50V61-289,50V61-480,50V61-486,50V61-507,B1809925,B1809927,B1809927S,CNT03078,CNT04018,CNT04352,D156245P01,D34142P01,KIT15815,PCB00106,PCB00106S,PCBB0106,PCBB0106S,PCBB0107S,X13650840010 |
| Control Voltage | 24V AC |
| Ignition Cycle Time | 90 seconds (HSI), 15 seconds (pre-purge), 15 seconds (post purge) |
| Replacement Type | Universal |
| Automatic Reset Time | 1 hr |
| Heat Delay to Fan On | 45 sec |
| Flame Sensor Current Output | 0.3 uA |
| Minimum Operating Temperature | -40 Degrees F |
Description
The White-Rodgers 21V51U-843 is a universal integrated two-stage hot surface igniter control. It provides hot surface ignition for LP/NG gas systems, operating at 24V AC and 0.45 A. This control is for use with residential and commercial heating equipment and includes an ignitor with 1/4 spade terminals and Molex plugs.
| Shipping | This item ships to USA |
Processing Time:
All orders at Pro Replacement Parts are processed and shipped within 1-2 business days. For orders placed before 12 PM EST, we offer same-day shipping whenever possible. We aim to ensure that your order reaches you as quickly as possible.
Delivery Timeframe:
Our standard delivery window is between 3-8 business days, depending on your location. We partner with trusted carriers such as FedEx, UPS, USPS, and other local carriers to ensure your items arrive safely and on time.
Shipping Methods:
- Items exceeding 50” in width or 70 lbs in weight are shipped via Freight Carrier. You will be contacted by the carrier to schedule a delivery time.
- Items under 50” in width and 70 lbs in weight will be shipped via UPS or FedEx as a small package service.
Freight Shipments:
Freight shipments are delivered curbside in residential areas. You may need assistance to move the package indoors, or you can unbox the shipment and carry each piece inside individually. While some drivers may help move a shipment into a garage or carport, this is not guaranteed. For Inside Delivery requests, please contact us at the time of your order (additional fees apply). Email: support@proreplacementparts.com
Inspection and Damage:
Upon delivery, please inspect the carton and contents for any damage. If you find any damage, document it on the driver's delivery receipt and contact us immediately at support@proreplacementparts.com no later than 24 hours from the delivery time. We cannot accept responsibility for damage that is not noted on the driver's delivery receipt at the time of delivery.
Order Cancellations:
All order cancellations must be requested within 24 hours of placing the order. After this period, our standard return policy will take effect.
Thank you for choosing Pro Replacement Parts. We are dedicated to providing you with the best service and ensuring your orders are delivered in a timely and efficient manner. If you have any questions or need further assistance, please don't hesitate to contact us.
Wide Selection of Brands: At our store, you'll find an extensive range of electric motors from top brands in the industry. We carefully select our inventory to ensure that you have access to the best and most reliable products on the market. Whether you need a motor for an industrial machine, a household appliance, or a specialized project, we have something for everyone.
Customer-Centric Service: We believe in putting our customers first. Our team is committed to providing you with personalized service and support throughout your buying journey. From helping you choose the right motor for your needs to answering any queries you have after purchase, we're here to assist you every step of the way.
Competitive Pricing: We strive to offer our high-quality electric motors at competitive prices. Our goal is to provide you with the best value, ensuring that you get a top-performing motor without breaking the bank. Plus, our regular deals and promotions mean that you can save even more when you shop with us.
Reliable Shipping and Handling: While we don't offer same-day shipping, we understand the importance of timely delivery. That's why we work with reliable shipping partners to ensure that your order is processed, shipped, and delivered efficiently. You can trust us to get your electric motor to you in excellent condition and within a reasonable timeframe.
Knowledgeable Support: Our team is knowledgeable about the wide range of electric motors we offer. We can provide you with detailed information and specifications for each product, helping you make an informed decision. If you have any questions or need advice, our experts are just a call or email away.
Your purchase is covered by the Manufacturer’s Limited Warranty.
For return/refund information, please visit our Returns & Refunds page.
Description
- Voltage: 24
- Amps AC: 0.45 A
- Input Voltage: 120V AC, 24V AC
- Frequency: 50/60 Hz
- Maximum Operating Temperature: 175 Degrees F
- Control Voltage: 24V AC
Specifications
| Part Number | 21V51U-843 |
| Brand | White-Rodgers |
| Gas Type | LP/NG |
| Width | 5 1/4 in |
| Probe Length | 15 1/2 in |
| Control Volts | 24 V |
| Voltage | 24 |
| Depth | 1 1/4 in |
| Lead Length | 15 1/2 in |
| Height | 8 in |
| Overall Depth | 1 1/4 in |
| Overall Width | 5 1/4 in |
| Overall Height | 8 in |
| Includes | Ignitor |
| Prepurge Time (Sec.) | 15 sec |
| Electrical Connections | 1/4 Spade Terminals And Molex Plugs |
| Amps AC | 0.45 A |
| Electrical Ratings | 24V AC |
| For Use With | Residential, Commercial Heating Equipment |
| Igniter Warm-Up Time (Sec.) | 17 sec |
| Type | Universal Integrated Two-Stage |
| Item | Integrated Furnace Control |
| Retries | 2 |
| Standards | CSA Certified |
| Product Type | Integrated Furnace Control |
| Input Voltage | 120V AC, 24V AC |
| Cool Delay to Fan On | 5 sec |
| Cool Delay to Fan Off | 60 sec |
| Electrical Connection Type | 1/4 in Spade Terminals, Molex Plug |
| Board Type | Integrated Board |
| Number of Retries | 2 |
| Igniter Warm Up Time | 17 sec |
| Thermostat Anticipator Setting | No Thermostat Anticipator |
| Pre-Purge Time | 15 sec |
| Frequency | 50/60 Hz |
| Main Valve Current Output | 1.5 A |
| Lock Out Time | 5 min |
| Compatible with Brand | Goodman, Lennox, Trane, White-Rodgers |
| Heat Delay to Fan Off | 180 sec |
| Number of Fan Speeds | 3 |
| Maximum Input Current | 45 A |
| Maximum Operating Temperature | 175 Degrees F |
| For Fuel Type | LP, Natural Gas |
| OEM Replacement Part Number | See full list of OEM Replacement Part Number 18M9901,20300002,20300004,20300006,20300006S,21V51U-843,49M5901,50V51-243,50V51-288,50V51-289,50V51-290,50V51-507,50V61-120,50V61-143,50V61-288,50V61-289,50V61-480,50V61-486,50V61-507,B1809925,B1809927,B1809927S,CNT03078,CNT04018,CNT04352,D156245P01,D34142P01,KIT15815,PCB00106,PCB00106S,PCBB0106,PCBB0106S,PCBB0107S,X13650840010 |
| Control Voltage | 24V AC |
| Ignition Cycle Time | 90 seconds (HSI), 15 seconds (pre-purge), 15 seconds (post purge) |
| Replacement Type | Universal |
| Automatic Reset Time | 1 hr |
| Heat Delay to Fan On | 45 sec |
| Flame Sensor Current Output | 0.3 uA |
| Minimum Operating Temperature | -40 Degrees F |
Description
The White-Rodgers 21V51U-843 is a universal integrated two-stage hot surface igniter control. It provides hot surface ignition for LP/NG gas systems, operating at 24V AC and 0.45 A. This control is for use with residential and commercial heating equipment and includes an ignitor with 1/4 spade terminals and Molex plugs.
Shipping
| Shipping | This item ships to USA |
Processing Time:
All orders at Pro Replacement Parts are processed and shipped within 1-2 business days. For orders placed before 12 PM EST, we offer same-day shipping whenever possible. We aim to ensure that your order reaches you as quickly as possible.
Delivery Timeframe:
Our standard delivery window is between 3-8 business days, depending on your location. We partner with trusted carriers such as FedEx, UPS, USPS, and other local carriers to ensure your items arrive safely and on time.
Shipping Methods:
- Items exceeding 50” in width or 70 lbs in weight are shipped via Freight Carrier. You will be contacted by the carrier to schedule a delivery time.
- Items under 50” in width and 70 lbs in weight will be shipped via UPS or FedEx as a small package service.
Freight Shipments:
Freight shipments are delivered curbside in residential areas. You may need assistance to move the package indoors, or you can unbox the shipment and carry each piece inside individually. While some drivers may help move a shipment into a garage or carport, this is not guaranteed. For Inside Delivery requests, please contact us at the time of your order (additional fees apply). Email: support@proreplacementparts.com
Inspection and Damage:
Upon delivery, please inspect the carton and contents for any damage. If you find any damage, document it on the driver's delivery receipt and contact us immediately at support@proreplacementparts.com no later than 24 hours from the delivery time. We cannot accept responsibility for damage that is not noted on the driver's delivery receipt at the time of delivery.
Order Cancellations:
All order cancellations must be requested within 24 hours of placing the order. After this period, our standard return policy will take effect.
Thank you for choosing Pro Replacement Parts. We are dedicated to providing you with the best service and ensuring your orders are delivered in a timely and efficient manner. If you have any questions or need further assistance, please don't hesitate to contact us.
Why Buy From Us?
Wide Selection of Brands: At our store, you'll find an extensive range of electric motors from top brands in the industry. We carefully select our inventory to ensure that you have access to the best and most reliable products on the market. Whether you need a motor for an industrial machine, a household appliance, or a specialized project, we have something for everyone.
Customer-Centric Service: We believe in putting our customers first. Our team is committed to providing you with personalized service and support throughout your buying journey. From helping you choose the right motor for your needs to answering any queries you have after purchase, we're here to assist you every step of the way.
Competitive Pricing: We strive to offer our high-quality electric motors at competitive prices. Our goal is to provide you with the best value, ensuring that you get a top-performing motor without breaking the bank. Plus, our regular deals and promotions mean that you can save even more when you shop with us.
Reliable Shipping and Handling: While we don't offer same-day shipping, we understand the importance of timely delivery. That's why we work with reliable shipping partners to ensure that your order is processed, shipped, and delivered efficiently. You can trust us to get your electric motor to you in excellent condition and within a reasonable timeframe.
Knowledgeable Support: Our team is knowledgeable about the wide range of electric motors we offer. We can provide you with detailed information and specifications for each product, helping you make an informed decision. If you have any questions or need advice, our experts are just a call or email away.
Warranty/Returns
Your purchase is covered by the Manufacturer’s Limited Warranty.
For return/refund information, please visit our Returns & Refunds page.
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