Ideal Boilers Maximiser SE 42 Installation & Servicing Instructions Manual

Ideal Boilers Maximiser SE 42 Installation & Servicing Instructions Manual Manual pdf 31 page image

FAULT FINDING37 FAULT FINDINGDuring normal operation (no fault having occured) one of thefollowing codes with the corresponding service code, will beindicated on the display panel of the Maximiser SEcondensing boiler.display code service code unit operating conditionP Starting up the Control panel sequencer Restart of the Control panel sequence after a resetc Control panel sequence checks the unit data when starting upd Control panel sequence reads the unit data0 A Anti fast-cycle program in operation0 H Unit is stand-by; no heat required0 L Unit is in ignition phase0 U 15 seconds ventilation phase before or after operation of the unit0 Y Water temperature higher than adjusted, unit is waiting-. H Unit is in operation for central heating2 F This code can appear if the unit adjusts itself to the small amount ofwater in the installation.=. H Unit is in operation for hot water39 FAULT DIAGNOSISBy combining the display and service codes that are shownwith the unit and/or installation behaviour, the cause of themalfunction can be found. Normally, the operating code isindicated on the display. By pressing the “Service” button,the service code will appear. In the following table the mostimportant combinations of codes and boiler behaviour areshown. The numbers listed in the “causes” column refer toframe 41. This table shows you how to find the cause of themalfunction and how to solve the malfunction.38 FUSE SPECIFICATIONGlass fuse positionF1 fuse = igniter, 1.25 A slow, 250 V,F2 fuse = burner thermostat and control panel, 1.25 Aslow, 250 V,F3 fuse = three-way valve and control panel, 1.25 A slow,250 V,Fuse 1Fuse 2Fuse 320 Pin connector18 Pin connectorSpare fuse1 2 3Ignitor connection211080 UKMaximiser SE - Installation 30