Supplied By www.heating spares.co Tel. 0161 620 6677
7 181 465 347 (05.01)
38
Rectifying faults
Error Fd
Flue gas levels incorrect, CO level too high
Check
Action
1.
Does the gas supply type match the
specifications on the appliance iden-
tification plate?
yes:
↓
2.
no:
B
Convert appliance to correct gas type.
Flue gas levels incorrect? 2.
2.
B
Test gas supply pressure - OK?
Does pressure match figure speci-
fied in installation instructions?
yes:
↓
3.
no:
B
Decommission appliance.
Bei Erdgas:
B
Notify gas company.
b
3.
Problem with flue?
B
Check CO
2
level in combustion
air.
Is CO
2
level above 0,2 % ?
yes:
B
Check flue and repair or replace if necessary.
Flue gas levels incorrect? 4.
no:
↓
4.
4.
Flue gas CO
2
levels measured at
min. and max. load do not match
specified levels?
B
Measure CO
2
levels.
yes:
B
Adjust CO
2
level as per installation instructions.
Flue gas levels incorrect? 5.
no:
↓
5.
5.
Gas volumetric flow too high when
CO
2
level correctly set.
yes:
B
Reduce gas volumetric flow rate by means of
adjusting screw on gas valve and/or gas flow
restrictor.
B
Check CO
2
adjustment.
Flue gas levels incorrect? 6.
no:
↓
6.
6.
B
Power OFF the appliance.
B
Turn off gas cock.
B
Change the gas valve.
B
Open the gas cock.
B
Turn ON the appliance.
B
Check appliance for leaks.
