Specifications

7 181 465 346 GB (03.02)
Failure identification procedure
49
Set room temperature not reached (TA 211 E und DT 2)
Check Action
1. Thermostatic valve(s) set too low? yes: B Turn up thermostatic valve(s).
↓2.
no: ↓2.
2. Heating characteristic set too low? yes: B Correct heating characteristic.
↓3.
no: ↓3.
3. CH flow temperature control on
boiler set too low?
yes: B Turn up CH flow temperature control.
↓4.
no: ↓4.
4. Is heat store temperature unreacha-
ble (CH flow temperature control set
too low)?
yes: B Turn up CH flow temperature control.
↓5.
no: ↓5.
5. 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 Select Service Function 7.3 .
Select 1 (on, automatically deactivated) and con-
firm.
B Vent appliance
B Vent radiators.
B Turn ON the appliance.