Grundfos 526062 Cartridge Kit for Select UP Series Circulators
A replacement cartridge kit used to service select Grundfos UP series circulator pumps in heating applications by replacing the pump's internal cartridge assembly rather than replacing the entire circulator.
Key Features:
- Replacement cartridge kit for select Grundfos UP series circulators
- Listed for heating applications (as shown in product specs)
- Identified as a replacement part (as shown in product specs)
- SupplyHouse "Product Highlights" reference the UP26-96 and UP26-99 models
Compatibility & Applications:
- Listed for use with:
- UP26-96 115/230V
- UP26-99 115/230V
- SupplyHouse Q&A indicates compatibility for additional specific models, including UPS26-99BFC, UP26-99BF, and UP26-99F
- Must only be used where the manufacturer specifies this exact part number: 526062
Installation & Operation Notes:
- Installation should be performed by a qualified hydronic heating professional or technician familiar with circulator service practices.
- Refer to the specific circulator's service documentation for correct disassembly/reassembly steps and any required setup checks.
- Grundfos guidance for spare parts selection emphasizes using official spare-parts resources (such as the spare parts finder/product information tools) to identify the correct service kit for a specific pump, including selecting the correct production details when required.
- User feedback includes an installation-related note that bearings are lubricated by the pumped fluid and that proper mounting orientation matters; follow the pump's official installation/service guidance for required orientation and piping configuration.
Maintenance & Troubleshooting:
- This kit is typically used when a circulator is no longer operating correctly but the pump body can remain in place, allowing the internal cartridge to be replaced.
- Review themes commonly link cartridge replacement to symptoms such as loss of circulation (including reports of an impeller issue) or a pump that won't start (including reports of a seized shaft), with replacement restoring operation.
- If problems persist after replacement, consult the pump documentation and spare-parts resources for model- and production-specific troubleshooting guidance and correct kit selection.
User Reviews & Q&A Summary:
- Reviews commonly describe the cartridge kit as a practical way to "rebuild" the pump quickly by replacing the cartridge rather than the full circulator, with several noting the job can be completed in minutes once the pump is opened.
- Some reviews raise durability/reliability concerns based on their service history, including reports of shorter-than-expected life in certain installations.
- Q&A responses from staff state the 526062 cartridge is the correct replacement for UPS26-99BFC, and that it will work in UP26-99BF and UP26-99F models.