contenttype.faq

Question: Why is the circulator pump not running (no display on the operating panel), and what can be done about it?

Answer:

Possible causes of fault

No voltage

Defective pump

Remedy

The fuse of the pump's electrical supply line has tripped. Turn the fuse back on.

If an "RCD" fault current circuit breaker has been installed in the pump's electrical supply line, it has tripped. Switch the "RCD" back on.

If these measures do not have the desired effect, please call your specialist technician.

Additional information:

Enhance your knowledge

Find out how to get reduced energy consumption, increased comfort and unsurpassed operational reliability for your application. Read our customers' stories about how they benefit from the Grundfos approach to intelligence, water and energy, or search Grundfos research & insights for more learning materials, articles, white papers, videos and much more that benefit your solution.