Supplied By www.heating spares.co Tel. 0161 620 6677
7 181 465 347 (05.01)
44
Rectifying faults
Error Fd
4.
Air in the heating system.
B
Power OFF the appliance.
B
Check appliance and system for water leaks and
repair as necessary.
B
Top up system.
B
Turn ON the appliance.
B
Activate menu option Show service parame-
ters.
B
Select 7.3 Air purge mode select setting on,
autom. deactivat. and confirm.
B
Vent appliance.
B
Vent radiators.
Set room temperature not reached (integrated text display)
Check
Action
Set room temperature exceeded by large amount (TR 2)
Check
Action
1.
Do radiators get too hot?
yes:
B
Decrease setting of “Heating” control.
↓
2.
no:
↓
2.
2.
Bad choice of location for program-
mer, e.g. outside wall, near window,
in draught, on hollow wall, etc.
yes:
B
Select better installation location.
oder
B
Fit external room thermostat.
↓
3.
no:
↓
3.
3.
B
Turn down thermostatic valve(s).
Heating up takes too long (integrated text display)
Check
Action
1.
Is fast heat-up switched off?
yes:
B
Switch on fast heat-up.
↓
2.
no:
↓
2.
2.
Duration or output increase for fast
heat-up set too low
B
Increase setting.
