Ferroli Modena HE 25S Boiler Pump Assembly – Refurbished | Part No. 39818450

A faulty boiler pump assembly in a Ferroli Modena HE, Optimax HE, or Domi series boiler causes poor water circulation, uneven heat distribution, and system overheating — ultimately leading to boiler lockout and loss of heating or hot water. Unlike a standalone pump head, the complete pump assembly replaces the full circulating unit including the housing and motor in a single operation, making it the most comprehensive and reliable fix for circulation-related faults. The Ferroli Modena HE 25S Boiler Pump Assembly (Part No. 39818450) covers an extensive range of Ferroli condensing boilers across the Domi Compact, Domi Condense, Modena HE, Optimax HE, Optimax HE Plus, and T-One series.

This is a professionally refurbished genuine Ferroli component. Each assembly is stripped, cleaned, tested under operating conditions, and function-verified to original manufacturer specifications before dispatch — providing comprehensive circulation restoration at a significantly lower cost than a new assembly. The higher price reflects the complete assembly format (including housing and motor) versus a standalone pump head replacement. Supplied with a full 12-month warranty.

Compatible Boiler Models

OEM Tested. Complete Assembly. Backed by Warranty.

Every refurbished Ferroli pump assembly in our range is stripped, tested under real conditions, and function-verified to original manufacturer standards before dispatch. This 39818450 assembly restores full water circulation across an extensive range of Ferroli condensing models. Supplied with a full 12-month warranty.

Delivery & Returns

Orders placed before 1:00 PM are dispatched the same working day. Returns accepted within 30 days in original condition.

Note: Confirm part number 39818450 matches your existing assembly before ordering. Installation must be carried out by a Gas Safe registered engineer.