Drawing of the part type. Check the specs and the label on your old part.
Universal Two-Stage HSI Integrated 3-Speed (PSC) Furnace Control Kit (White Rodgers 21M51U-843)
- Ships in 1 to 2 business days. Free over $49.
- 30-day returns on unused parts.
- 1-year warranty. Details
- Questions? Ask us to check the fit
Hold your old control board next to this list. 2 ticks means it fits.
Specs
| Ignition type | Intermittent Hot Surface Pilot |
|---|---|
| Stages | 2 |
| Operating temp | -40° to 175°F |
| Humidity range | 5% to 93% Relative Humidity (Non-Condensing) |
| Width | 5-1/4" |
| Height | 8" |
| Depth | 1-1/4" |
| Type | Control board |
| Condition | New |
Will it fit?
Match the specs on your old part. Brand does not matter. The numbers do. If your old part has one of the part numbers below, this part is listed as its replacement.
Check wiring and model match before buying; gas and control parts may need a pro.
- 50M61-843
- R43207-001
Brand names and part numbers are shown only to help you find a compatible part. This is not a brand-made part. We are not affiliated with or endorsed by these companies.
Safety: read before you start
- Turn off power at the breaker. Then pull the disconnect by the outdoor unit.
- A capacitor can hold a charge after power is off. Do not touch its terminals until it is discharged.
- Take a photo of the wires before you remove them.
- Not comfortable with any step? Call a licensed HVAC tech.
Shipping
Ships in 1 to 2 business days. Free standard shipping on orders over $49. You get tracking by email.
Returns
Return unused parts within 30 days. Parts that were installed or wired in can not be returned unless they are defective. Return policy.
Warranty
1-year warranty against defects. Keep your order email. Warranty details.