Viessmann VITOLIGNO 300-H Series, Руководство по эксплуатации

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44
Cause Remedy
Central heating is switched off. Check the room thermostats. If necessary, change the
operating program.
■
Control unit incorrectly set.
■
The remote control (if installed) is set incorrectly.
Check the settings and correct if required:
■
The heating circuit must be on. See page 18.
■
Room temperature: See page 17.
■
Time: See page 36.
■
Switching times: See page 18.
Control unit fault:
"Fault" is shown in the display. The red fault indicator
flashes.
Check the type of fault and notify your heating contrac-
tor accordingly. See page 41.
The heating circuit pump is not working. Contact your heating contractor.
Heating circuit with mixer: mixer motor faulty Unhook motorised lever
A
. Adjust mixer lever
B
man-
ually (e.g. to "5").
Notify your heating contractor.
Rooms are too hot
Cause Remedy
■
Control unit incorrectly set.
■
The remote control (if installed) is set incorrectly.
Check the settings and correct if required:
■
The heating circuit must be on. See page 18.
■
Room temperature: See page 17.
■
Time: See page 36.
■
Switching times: See page 18.
Control unit fault or outside temperature sensor/boiler
water temperature sensor faulty:
"Fault" is shown in the display. The red fault indicator
flashes.
Check the type of fault and notify your heating contrac-
tor accordingly. See page 41.
Heating circuit with mixer: mixer motor faulty Unhook motorised lever
A
. Adjust mixer lever
B
man-
ually (e.g. to "5").
Notify your heating contractor.
What to do if...
Rooms are too cold
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