71
Troubleshooting
6 720 617 763 (2008/09)
If the fault persists:
B
Call the authorised installer or customer serv-
ice and inform them of the fault, quoting the
controller details (from the identification
plate inside the flap).
Appliance details
Type:
.............................................................................
Order number:
.............................................................................
Date of manufacture (FD...):
.............................................................................
Domestic hot water cylinder
does not heat up.
Domestic hot water temperature control
on boiler set too low.
Set domestic hot water temperature con-
trol higher.
Reduce influence of solar optimisation if
necessary.
Flow temperature controller on the boiler
set too low.
Turn the flow temperature control on the
boiler clockwise as far as it will go.
Domestic hot water programme fault.
Check/correct programme.
Incorrect System configuration for
domestic hot water system.
Correct the configuration to match the
domestic hot water system connected.
Fault
Cause
Remedy
Tab. 24
