IDEAL icos HE12 - Fault Finding Guide; Fault Code Overview

47
icos - Installation & Servicing
FAULT FINDING
FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING FAULT FINDING
69 FAULT FINDING CHART MAIN MENU
ALTERNATING 'L' 'F'
GO TO FRAME 70
ALTERNATING 'L' 'E'
GO TO FRAME 71
ALTERNATING 'L' 'A'
GO TO FRAME 72
ALTERNATING 'L' '8'
GO TO FRAME 73
ALTERNATING 'H' '1'
GO TO FRAME 74
ALTERNATING 'H' 'F'
GO TO FRAME 75
ALTERNATING 'H' '4'
GO TO FRAME 76
ALTERNATING 'H' 'n'
GO TO FRAME 77
ALTERNATING 'H' 'E'
GO TO FRAME 71
In order to assist fault finding the boiler has an LED diagnostic display. The key to the display codes is as follows:
ALTERNATING 'H9'
GO TO FRAME 76
ALTERNATING 'L9'
GO TO FRAME 76