Worcester Bosch Electrical Heating Element 87183100440

The electrical heating element is a Worcester Bosch component (part number 87183100440) used in Greensource air/water heat pumps. It provides supplementary or backup heating within the appliance's heating circuit. It is a serviceable electrical part, not a hydraulic or control component.

• The heat pump fails to reach the set flow temperature, particularly in cold weather when the element should assist.
• An error code or fault indication relating to the heating element or supplementary heater appears on the appliance.
• The RCD or circuit breaker trips when the element is energised.
• A continuity or resistance test across the element shows an open circuit or a reading outside the expected range.
• Visible damage, corrosion or heavy scaling on the element body or terminals.

• Confirm the appliance model and, where available, the serial number against the manufacturer's parts list.
• Check that the existing element has actually failed by testing continuity and resistance before removal.
• Isolate the electrical supply and confirm the heating circuit is depressurised and drained before any work.
• Verify the part number 87183100440 matches the number on the component being replaced.