Page 11411.8 Servicing11.8.1 General RequirementsThe appliance must be serviced annually by a Warmflow or OFTEC registered servicetechnician in accordance with the recommendations laid out in OFTEC’s Technical Book 2:‘Domestic & Light Commercial Servicing and Commissioning – Requirements for Oil FiredSystems – Pressure Jet Appliances’.Additionally, when servicing, special attention MUST be paid to the condition of the oil nozzle,flexible oil line, fuel filter, door insulation, sealing rope, expansion vessel (inc. pre-charge) andthe secondary heat exchanger door seal. If found to be defective, they MUST be replaced.If fitted, the magnetic filter must be serviced per the manufacturer’s instructions.Flexible oil lines must be replaced if out of their guarantee period. If doubt exists as to theguarantee period expiry date of the flexible oil lines, or if their integrity is uncertain, they MUSTbe replaced as part of the service.The operation of boiler appliance safety controls and devices such as high limit thermostats,pressure relief valves and fire valves MUST be assessed. If found to be defective, they MUSTbe replaced.N.B.: Where they exist, wheel-head fire valves MUST be replaced with a remote acting type.The system corrosion inhibitor concentration must be checked during annual servicing (instanton-site test kits are available from inhibitor manufacturers) and additional inhibitor MUST beadded if the system is found to be under-dosed. Refer to the inhibitor manufacturer for furtherguidance.Note: All product warranties will be invalidated if the appliance is not serviced annuallyby a Warmflow or OFTEC trained and registered technician. Details of the servicingconducted must be recorded in the OFTEC Boiler Passport.
