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Maintenance and Service

Exam revision materials for Plumbing Level 2&3 and ACS Gas Safety test

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Boilers

Ferroli

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HUB-001A-WAX Vado Thermostatic Cartridge

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S960134NU Thermostatic Cartridge

Sirrus Rothwell R995 Antique Shower

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Servicing Guide

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Ferroli DOMIcondense HE26C - main heat exchanger 39837660

Ferroli DOMIcondense HE26C hot water is luke warm 

  • Boiler is making a kettling noise and sometimes goes into lock-out when hot water is on
  • Heating is working fine
  • The boiler is in hard water area and a lime scale reducer is not fitted
  • Main heat exchanger has scaled up
  • Replace the main heat exchanger Ferroli 39837660 MAIN HEAT EXCHANGER
< Go Back2015-02-21

Ferroli Modena F24 Pump Assembly 39808300

Ferroli Modena F24 no heating but hot water is working fine

< Go Back2015-02-21

Ferroli F 30 - hot water but no heating

Ferroli F 30 combination boiler doesn't produce any heating but hot water is working fine. When you turn the room stat up the boiler suppose to fire up but it doesn't.

  • Open the boiler cover and check continuity between two wires from the room stat.
    • if no continuity when room stat is calling then replace the room stat
  • Next check the boiler time clock has heating 'on'
  • Check for continuity between 3 and 5 connectors to the time clock
    • in my case there were no continuity so the time clock is faulty and need replacement
  • The part to repalce is Ferroli Universal Time Clock 39803831
< Go Back2013-06-13