When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performancespecification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Boilers.For the very latest copy of literature for specification and maintenance practices visit our website www.idealboilers.comwhere you can download the relevant information in PDF format.February 2019UIN 215355 A10USER GUIDELOGIC+ HEATH12 H15 H18 H24 H30

Ideal Boilers LOGIC+ HEAT H12 User Manual

gas supply

electrical supply

water treatment

mounting the boiler

flue terminal position

Electrical Connections

Installer Wiring Plan Diagrams

Wiring Diagram

Commissioning & Testing

Initial Lighting

General Checks

Accessing The Installer Mode

SERVICING

Boiler Front Panel Removal / Replacement

Burner Removal And Cleaning

Cleaning the Heat Exchanger

Replacement Of Components

Burner Injector Replacement

Control & Return Thermistor Replacement

Flame Detection Electrode Replacement

Gas Control Valve Replacement

PCB Replacement

Heat Engine Replacement

External System Filter Cleaning Guide

FAULT FINDING

L2' - Ignition Lockout

L6' - False Flame Lockout

F3' - Fan Fault

No CH Operation

SPARE PARTS

gas boiler system commissioning checklist

service record

LOGIC MAX HEAT H 12

LOGIC MAX HEAT H 15

LOGIC MAX HEAT H 18

LOGIC MAX HEAT H 24

LOGIC MAX HEAT H 30