Supplied By www.heating spares.co Tel. 0161 620 6677
7 181 465 347 (05.01)
33
Rectifying faults
Error F7
F7
and
flashing.
Although appliance switches off, flame still detected
Check
Action
1.
Electrode(s) dirty or defective?
B
Power OFF the appliance.
B
Remove electrode assembly and
bracket and check for wear,
deposits and mechanical damage.
yes:
B
Replace electrode assembly.
B
Turn ON the appliance.
B
Press
, restart the appliance.
F7?
↓
2.
no:
B
Refit electrode assembly.
B
Turn ON the appliance.
B
Press
, restart the appliance.
F7?
↓
2.
2.
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.
no:
↓
3.
3.
The PCB control board is damaged.
B
Make a note of the altered service settings (see
table 1 on page 7).
B
Power OFF the appliance.
B
Disconnect the boiler electrical connection.
B
Change PCB control board.
B
Reconnect the boiler electrical connection.
B
Turn ON the appliance.
B
Restore service settings previously noted down.
FA
and
flashing.
After appliance switches off flame is detected
Check
Action
1.
Is the condensation trap blocked?
yes:
B
Power OFF the appliance.
B
Clean out condensation trap discharge pipe.
B
Turn ON the appliance.
B
Press
, restart the appliance.
FA?
↓
2.
no:
↓
2.
