IDEAL icos system HE15 Installation And Servicing page 53

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78 FAULT FINDING CHART MAIN MENU
In order to assist fault finding the boiler has an LED diagnostic display. The key to the display codes is as follows:
ALTERNATING 'L' 'F'
ALTERNATING 'L' 'E'
ALTERNATING 'L' 'A'
ALTERNATING 'L' '8'
ALTERNATING 'H' '1'
ALTERNATING 'H' '4'
ALTERNATING 'H' 'F'
ALTERNATING 'H' 'n'
ALTERNATING 'H' 'E'
ALTERNATING 'H9'
ALTERNATING 'L9'
icos system -
Installation and Servicing
FAULT FINDING
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