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Chapter 7
Fault
7.1 Trouble shooting
If the control system detects a faults, this is shown on the dis
play by means of a number, preceded by a letter
F
(Failure). If
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ZD\VZLWFKZLOODOVRVWDUWEOLQNLQJ
The examples shown here is the fault
F9
7KLVPHDQVVRPH
thing is wrong with the wiring to the atmospheric temperature
sensor or with the sensor itself.
The appliance remains in this fault mode until the problem in
question has been solved. Then the appliance will reset itself
(auto reset) and the display will once more show operational
mode.
The table to section 7.3 gives an overview of the faults, pos
sible causes and the actions to be undertaken.
7.2 Filter indication
If the display shows the message "
FIL
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WHUVKDYHWREHFOHDQHG,IDPXOWLSOHVZLWFKZLWK¿OWHULQGLFDWLRQ
has been installed , then simultaneously with this message on
the display, the LED on the switch will light up.
$IWHUWKH¿OWHUVKDYHEHHQFOHDQHGRUUHSODFHGWKHNH\³
OK
”
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The text “
FIL
” will blink for a moment and then the display will
return to operational mode.