In this video, we walk through a common issue in hydronic systems—circulators running without water—and how modern Grundfos circulators protect themselves from damage. Traditionally, a circulator could accidentally be powered on before the system had water, causing it to run dry and eventually burn out. This often led to callbacks, replacements, and unnecessary system damage.

New circulators, like the Grundfos ALPHA Comfort System, include built‑in dry‑run protection that allows the pump to detect when no water is present. Instead of overheating or damaging itself, the circulator automatically shuts down after several start attempts—saving both the pump and the system. You’ll also learn what the display on the pump looks like during a dry‑run error and how to diagnose the issue using the Grundfos GO App.

If you want to reduce callbacks and protect pumps from running dry, be sure to check out the latest Grundfos circulators. Learn more about our latest residential solutions: http://gfos.ly/6057hgxT5