Viessmann F remote control Operating Instructions Manual page 49

Fault
Connected
equipment
(e.g. pump,
mixing valve)
does not
switch on
Please note:
All the necessary control functions are incorporated in
the F remote control and in the control unit and are pro
grammed internally for all operating conditions to save
energy and protect the heating system.
Not every "irregularity" is indicative of a fault, but is
likely to be due to the way in which the unit has been
programmed.
Please contact your heating contractor in the event of
malfunctions of the F remote control.
As the operator of the heating system, you are required to
operate, service and repair the system in accordance with
the regulations.
Dokument: - page 4 (Black)
Screen angle and frequency: 45.0000, <default>
Cause
Incorrect heating
program selected
(e.g. "Continuous
standby mode with
frost protection of
the heating sys-
tem")
Time program in
correctly set
Connected control
unit defective
Troubleshooting guide
Remedy or provi
sional method of
operation
Set required hea
ting program
Set time program
correctly (see page
48)
Check connected
control unit
49