Ideal Boilers Maximiser SE 42 Installation & Servicing Instructions Manual

Ideal Boilers Maximiser SE 42 Installation & Servicing Instructions Manual Manual pdf 30 page image

FAULT FINDING36 CONTROL PANEL DISPLAYFig. 36.1 Display and service codeOperating functionsGeneral explanation display and service codesThe current operating condition of the unit is indicatedby a display code and a LED, located on the control panel.By pressing the service button, a second code will appear.The combination of both codes gives detailed informationabout the operating condition of the unit.The indicated display code corresponds with the operatingfunctions described below:display operating functioncode0 Stand-by-. Central heating operation=. Hot water1 FGD/burner thermostat2 Water circuit4 Water temperature5 Communication6 lonisation7 Mains voltage8 Gas circuit9 SystemE Control systemDuring operation of the Maximiser SE condensing boiler thestatus of the appliance can be determined by the display.1. Normal operation.The display will remain constant. The unit either on stand byor in operation. The meaning of the code can be determinedfrom the information in frame 36.2. Fault condition.The display will flash on and off. The unit will be inoperativeand the display will provide codes which should be noteddown and compared with the listings in frames 37 to 41.Type UBA 4000Max. safety time: 10 sec.220 - 240 Vac 50 HzDIN DVGW nr: 93.01bNF "S"CE REG.NR. 63 A052801 2pumpservicedisplayreset21107735 replacement of components (REFER TO FRAME 43) (CONT)Heat Exchanger (refer to fig. 43.3, key 19)1. Disconnect the electricity supply.2. Where possible isolate the boiler from the heating system.3. Drain the system water from the heat exchanger.4. Isolate the gas supply at the nearest gas cock to theboiler.Remove the components listed below by following theinstructions for their removal previously stated in theseinstructions.* Casing complete* Igniter* Ionization Electrode* Fan* Flow/Return/Safety Sensors* Pump* Burner Plaque Assembly* Lower Access Cover* Heat Exchanger Guide Plate5. Disconnect the flue system from the boiler and removethe adapter plate fixed to the back panel.6. Remove the clip holding the heat exchanger to the flowpipe.7. Lift the heat exchanger from its hooks in the back paneland remove to a safe working surface.8. Remove the fixing screws holding the flue outlet pipe tothe heat exchanger and remove the pipe.9. Refit the flue pipe to the new heat exchanger and securewith the existing fixings.10. Refit the heat exchanger to the back panel securing it onthe hooks provided.11. Reassemble all components in reverse order.12. Refill the system, reconnect the electricity and gassupplies and check the operation of the boiler.29 Maximiser SE - Installation