Worcester GREENSTAR HE combi Series, Installation And Servicing Instructions

Page: 139 / 176

7 181 465 347 (01.07)
Rectifying faults
15
Loose or broken contact on
heat store NTC sensor X X 39
Specified CH flow tempera-
ture from TA... programmer
exceeded X X 40
Programmer faults
TR
2
Pag
e
Set room temperature not
reached X 41
Set room temperature
exceeded by large amount X 43
Set room temperature not
reached 41
Temperature rises instead of
falling X 43
Room temperature too high in
Economy mode X 43
Incorrect or no modulation X 43
Heat store fails to heat up 44
Table 4
Appliance faults
ZB
R
... A
ZS
BR
.
..
A
ZW
BR
.
..A
Pag
e
Table 3