TROUBLESHOOTING
Fault Codes Continued
Long Short Morse Code
Meaning
Action
3
1
— — —•
Room fan
(circulation
fan) pressure
signal has been
interrupted.
Check the fan for dust build up and lint. Check that the room air
fan is spinning. Check that the pressure tubes are connected
correctly and not pinched or kinked. The black tube should run
from the black side of the pressure switch to the bottom tapping
on the fan venturi. The clear tube should go from the light side of
the pressure switch and to the top tapping on the venturi. Make
sure that the pressure switch wires are connected correctly.
One wire should be to C (Common) and the other should be to NO
(Normally Open). If it still doesn’t work after checking the above,
change the pressure switch.
1
3
—•••
Combustion fan
pressure signal
not detected.
Check that the fan is spinning by starting the heater and either
listening for the fan, or check to see if air is blowing out of the
flue pipe. Check that the pressure tubes are connected correctly
and not pinched or kinked. The black tube should run from the
black side of the pressure switch to the bottom tapping on the
fan venturi. The clear tube should go from the light side of the
pressure switch and to the top tapping on the venturi.
Make sure that the pressure switch wires are connected correctly.
One wire should be to C (Common) and the other should be to
NO (Normally Open). If it still doesn’t work after checking the
above, change the pressure switch.
3
2
— — —••
Combustion
fan pressure
has been
interrupted.
Check that the fan is spinning by starting the heater and either
listening for the fan, or check to see if air is blowing out of the
flue pipe. Check that the pressure tubes are connected correctly
and not pinched or kinked. The black tube should run from the
black side of the pressure switch to the bottom tapping on the
fan venturi. The clear tube should go from the light side of the
pressure switch and to the top tapping on the venturi.
Make sure that the pressure switch wires are connected correctly.
One wire should be to C (Common) and the other should be to
NO (Normally Open). If it still doesn’t work after checking the
above, change the pressure switch.
2
8
— —••••••••
Room fan
(circulation fan)
pressure switch
has not switched
within the
expected time.
Check the fan for dust build up and lint. Check that the room air
fan is spinning. Check that the pressure tubes are connected
correctly and not pinched or kinked. The black tube should run
from the black side of the pressure switch to the bottom tapping
on the fan venturi. The clear tube should go from the light side of
the pressure switch and to the top tapping on the venturi.
Make sure that the pressure switch wires are connected correctly.
One wire should be to C (Common) and the other should be to
NO (Normally Open). If it still doesn’t work after checking the
above, change the pressure switch.
Cannon Power Flue | 21
Ensure that the condensate drain hoses are free flowing and not
kinked or blocked. If the hoses are blocked, check that the
combustion fan is not filled with condensate. Ensure that the
combustion fan drain is free flowing and that the combustion fan
is dry prior to restarting the heater.
Hoses to the pressure switch may also need to be checked that
condensate has not entered these tubes.
Содержание Fitzroy FITZIB-PDEX series
Страница 23: ...Cannon Power Flue 23 NOTES...
