Sime BFR 25-60 Pump 6135905

The Sime 6135905 is a circulation pump designated BFR 25-60, manufactured by Sime for use in its Planet DEWY 100 BFR boiler. It moves primary water around the heating circuit and through the boiler's heat exchanger, maintaining flow whenever there is a demand for heat or hot water. The pump is listed by the manufacturer under the model reference SIME - SIME PLANET DEWY 100 BFR.

• The pump runs but the boiler and radiators stay cold, indicating poor or no circulation.
• Grinding, humming or rattling noise from the pump body during operation.
• The boiler locks out or trips on an overheat fault because heat is not being carried away from the heat exchanger.
• Water weeping from the pump housing, flange or seal area.
• The pump does not start at all when the boiler calls for heat.

• Confirm the appliance model is the Sime Planet DEWY 100 BFR.
• Check the part number on the existing pump or in the manufacturer's parts list matches 6135905.
• Verify the pump designation BFR 25-60 against the unit fitted to the boiler.
• Isolate the boiler electrically and close the pump isolation valves before removal.