Little Giant Simplex Basin and Cover Assembly, 18in x 30in Cast Iron Basin, 2Piece, 3in Vent, 3in Discharge - 513121 BB1830CS3V3D

Howdy! Thanks for posting your question here on PlumbersStock concerning the Grundfos UP10-16 Recirculating Pump. This recirculating pump feature uses LED lights as indicators. If your boiler goes through its air proving and ignition phase, your Grundfos recirculating pump flashes/blinks orange/green. When it meets the flow temperature, then the light flashes/blinks green. If the indicator light goes red then turns off, then that means that you have a defective external temperature sensor but if it turns red and does not turn off, it means that you have a defective internal temperature sensor. You may check this Product Manual for more information about the auto adapt light. Should you have any further questions or concerns, please don’t hesitate to contact us. We thank you for choosing PlumbersStock.com. We are always happy to serve you!

Hi! Thank you for asking about the Grundfos 98420224. The AUTOADAPT features are self-regulating, so when your pumps with AUTOADAPT are installed, they will automatically adapt to their surrounding and heating system. Yes, it will run the pump solid as the extreme effectiveness of the AUTOADAPT system and function automatically controls the on/off behavior of the pump according to this pattern. This ensures that the pump only runs when necessary. This means that pumps with AUTOADAPT is always operating on the most efficient performance curve and 100% mode lets the pump run constantly at full speed and saves you time and money by adapting all day. If this what you need, simply click Add to Cart and fill in the required fields. Enter your zip code to get a shipping cost estimate and proceed to checkout to begin the ordering process. Thank you for visiting PlumbersStock.com. Have a great day!

Hi, there! Thank you for taking interest in the Grundfos UP10-16 Comfort recirculating pump. This unit flashes green light when it meets the flow temperature. Please be informed that it features LED lights as indicators. We hope this information helps! To purchase the Grundfos UP10-16 pump, just click on "Add to Cart". Enter your zip code to get a shipping cost estimate and proceed to checkout to begin the ordering process. Have a nice day!

Hi, there! Thank you for inquiring with us. This Grundfos UP10-16 A PM BU/LC's AutoAdapt feature uses LED lights as indicators. If your boiler goes through its air proving and ignition phase, your Grundfos recirculating pump flashes/blinks orange/green. When it meets the flow temperature, then the light flashes/blinks green. If the indicator light goes red then turns off, then that means that you have a defective external temperature sensor but if it turns red and does not turn off, it means that you have a defective internal temperature sensor. Thank you and we hope to see you visit us again here at PlumbersStock.com!