Worcester Bosch Circulating Pump 87161084050

The Worcester Bosch 87161084050 is a circulating pump supplied for the manufacturer's oil-fired boiler range. It moves heated water from the boiler through the heating circuit and the indirect hot water cylinder, maintaining the flow rate the appliance needs to run at its designed temperatures. It is the pump used across the Camray 5, CAM 5 and Camray Classic families.

• Radiators or the hot water cylinder stay cold while the boiler is firing and the burner is running
• The pump body becomes noisy, with rumbling, screeching or grinding that does not clear after venting
• The pump casing runs noticeably hot, or the boiler repeatedly trips on its overheat thermostat
• Water weeps from the pump housing, gland or connection joints
• The boiler locks out intermittently because flow through the primary circuit has stopped

• Check the model and serial number on the appliance data badge against the compatibility list below before ordering
• Compare the pump fitted to the appliance with the previous number EL49011 and the alternative number 1021223 to confirm the correct replacement
• Have a suitable gasket or seal kit ready, as the pump connections are disturbed during removal and refitting
• Isolate the electrical supply and the water supply, and drain down as required, before starting work