Worcester ZWBR 7-28 HE plus

7 181 465 347 (01.07)
Rectifying faults
43
Set room temperature exceeded by large amount
Check Action
1. Do radiators get too hot? yes: TR 2:
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
1)
.
↓3.
no: ↓3.
3. B Turn down thermostatic valve(s).n
1) See installation instructions
Temperature rises instead of falling
Check Action
Timer clock (DT 2) incorrectly set B Check setting and correct as necessary.
Room temperature too high in Economy mode
Check Action
Building retains heat well yes: B Set economy temperature lower.
-or-
B Set earlier start time for Economy mode.
Incorrect or no modulation
Check Action
Programmer incorrectly wired B Check wiring against wiring diagram and correct
as necessary.