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stephaniedownsAug 11, 2025
Why Grundfos 5SQ-90 is not working?
- MMark MillerAug 11, 2025
Several issues can prevent your Grundfos Water Pump from running. It could be due to blown fuses, which you should replace, checking the electrical installation and drop cable if they blow again. The GFI circuit breaker might have tripped, so try resetting it. There might be no electricity supply, in which case you should contact your electricity provider. Overload can cause the motor protection to cut off the electricity, so check for any motor or pump blockage. A defective drop cable can also be the cause, requiring repair or replacement of the pump/cable. Finally, overvoltage could be the issue, so check the electricity supply.
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