Drawing of the part type. Check the specs and the label on your old part.
FLAME SENSOR
4" Flame Sensor for Hot Surface Ignition Systems with 30" Lead (Supco FLS401)
Part no. FLS401 · Compatible replacement part · Supco
ROD LENGTH
4"
$34.49
- 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
FIT CHECK: MATCH THESE NUMBERS
Hold your old flame sensor next to this list. 3 ticks means it fits.
THIS PART'S NUMBERS
14"
Tick each box once you check it. 3 left to check.
Specs
| Rod length | 4" |
|---|---|
| Condition | New |
Will it fit?
Match the specs on your old part. Brand does not matter. The numbers do.
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 the furnace power switch and the gas valve before you start.
- If you smell gas, leave the house. Call your gas company from outside.
- Never bypass a safety switch or sensor.
- Not sure? Call a licensed HVAC tech. Gas work is not a guessing game.
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.