Supplied By www.heating spares.co Tel. 0161 620 6677
7 181 465 347 (05.01)
37
Rectifying faults
Error Fd
4.
Is appliance’s internal air/flue chan-
nel leaking or blocked?
B
Open up heat exchanger and
inspect.
B
Remove silencer, flue duct and air
flow limit.
B
Open trap and inspect.
Air channels dirty/clogged, seals
defective or not correctly fitted?
yes:
B
Repair or replace components.
B
Grease seal before fitting. Make sure it is fitted in
correct position.
Rumbling noises?
↓
5.
no:
↓
5.
5.
B
Measure CO
2
levels.
CO
2
levels in flue gas at min and
max output do not match figures
specified in installation instruc-
tions.
yes:
B
Adjust CO
2
level as per installation instructions.
no:
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.
Excessive burner noise, rumbling noises
Check
Action
