47
Cause Remedy
The heating system is off. ■ Turn on the ON/OFF switch (see dia-
grams from page 22).
■ Switch on the mains isolator if installed
(outside the boiler room).
■ Reset the MCB in the power distribution
board (main domestic MCB).
■ Control unit incorrectly adjusted.
■ The remote control (if installed) is set
incorrectly.
Separate operating instructions
DHW heating must be enabled.
Check settings and correct if required:
■ Operating program (see page 31)
■ DHW temperature (see page 31)
■ Time program DHW heating (see
page 31)
■ Time (see page 36)
No fuel. With oil/LPG:
Check the fuel reserves and re-order if
required.
With natural gas:
Open the gas shut-off valve. If necessary,
check with your gas supply utility.
"Fault" is displayed. The red fault indica-
tor flashes.
Check what type of fault it is. Acknowl-
edge the fault (see page 41). If necessa-
ry, notify your heating contractor.
The DHW is too hot
Cause Remedy
The control unit is incorrectly adjusted. Check and correct the DHW temperature
if required (see page 31)
The DHW is being heated by the solar
thermal system.
Check and correct settings, if required, at
the solar control unit.
Separate operating instructions
What to do if...
There is no hot water
5592 682 GB
To Next Page
Loading...
Need help?
General
