Repair & Maintain
Ensure that your system continues to function at its best. Find how-to guides, videos, FAQs and related services to help you with repair and maintenance
of your Grundfos products.
How do I contact Grundfos customer service?
As an installer, you have the choice of ordering Grundfos customer service from your specialist wholesaler or of contacting us directly via phone or contact form.
Please have your customer number ready, should you choose to contact us directly. If you are unsure about whether you have a customer number or not, please send us a copy of your company letterhead.
As a private customer, we ask that you refer to a specialist installation company in your area.
How to rewind MMS8 motor
Grundfos service specialist shows how to rewind Grundfos MMS8. Find out what the job requires and how it is performed.
What does water hammering mean, and what causes it?
Water hammering is a pressure surge caused by a rapid change in flow velocity in the pipeline. This phenomenon is referred to as "water hammering" because the pressure surges are frequently accompanied by a noise that sounds as if the pipeline were being pounded with a hammer.
In well installations, water hammering generally occurs if a) the non-return valve in the downpipe extending down from the pump is installed more than 9 m above the water level, or b) the non-return valve ...
Where can I find information to troubleshoot Grundfos products?
The operating instructions provided with every Grundfos product contain relevant troubleshooting information. These instructions describe not only installation, operation and maintenance, but also include a dedicated section to assist in troubleshooting general problems that arise during use. The instructions are also available online on the product pages under the tab called Documentation.
GRUNDFOS REPAIR FOR ME IS MINIMIZED PRODUCTION DOWNTIME
If pumps break down, it is often a matter of great importance to get them up and running again, fast. At Grundfos, we know pumps better than anyone, and we can help you with any repair need of any pump from any manufacturer.
Prompt and reliable service wherever you are
With Grundfos service centres in more than 50 countries throughout the world, supplemented by more than 600 authorised Grundfos Service Partners, we’re never far away. If required, we ensure you get emergency access to service personnel as well.