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13
Cause
Remedy
Remote control set incorrectly.
Check that DHW heating has been ena-
bled.
or
must be selected (see
page 9).
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.
" "
is displayed.
Scan and acknowledge the type of fault at
the Vitotronic control unit. If necessary,
notify your heating contractor.
Control unit operating instruc-
tions
" " is displayed
Cause
Remedy
Heating system fault.
Scan and acknowledge the type of fault at
the Vitotronic control unit. If necessary,
notify your heating contractor.
Control unit operating instruc-
tions
" " and "
" are displayed
Cause
Remedy
Wireless connection interference or inter-
ruption.
Contact your local heating contractor.
What to do if...
There is no hot water
5592 697 GB