Troubleshooting Measures - Viessmann Vitoconnect OPTO2 Series Operating Instructions Manual

Troubleshooting measures

Internet connection interrupted
If the internet connection is interrupted, you will no lon-
ger be able to make settings via the ViCare app.
Only in conjunction with Vitoconnect, type OT2
■ The previously set time programs for central heating
and DHW heating are active.
You can change the set room temperature via the
■
Vitotrol 100, type OT1.
■ You can switch on "Comfort mode" via the Vitocon-
nect: See page 21.
Fault display on the Vitoconnect
Faults on the Vitoconnect are signalled by various LED
indicators: See page 18.
Faults with LED
Pulsates yellow.
Illuminates yellow.
Or
Illuminates red.
Flashes red quickly.
Faults with LED
Flashes yellow.
Flashes yellow quickly.
Flashes red quickly.
Illuminates red.
Only in conjunction with Vitoconnect, type OPTO2
You can change all settings on the control unit of the
■
heat generator.
Type of fault and measures
Could not connect Vitoconnect to WiFi router
Check the password during WiFi commissioning.
■
Check the connection to the WiFi router.
■
Restart the Vitoconnect: See page 24.
■
No internet connection or No connection to the Viessmann server
No WiFi connection
■
– Check the network setting during WiFi commissioning.
– Check the password during WiFi commissioning.
WiFi signal strength insufficient
■
–
Change the installation location of the Vitoconnect: See page 10.
WiFi connection established, but no internet connection.
■
–
Check the internet connection with another subscriber, e.g. a laptop.
If no internet connection is possible even with another subscriber, have the
network settings checked by an IT expert.
Restart the Vitoconnect: See page 24.
■
Software or hardware fault
Restart the Vitoconnect: See page 24.
■
If required, replace the Vitoconnect.
■
Type of fault and measures
Communication error with the Vitotrol 100, type OT1
Check the OpenTherm connecting cable to the Vitotrol 100, type OT1: See
■
page 16.
Restart the Vitoconnect: See page 24.
■
No connection to the boiler
Check the plug-in connections (Optolink, USB).
■
Check the connection lines (OpenTherm, Optolink).
■
Restart the Vitoconnect: See page 24.
■
Software or hardware fault
Restart the Vitoconnect: See page 24.
■
If required, replace the Vitoconnect.
■
Fault at the control unit of the heat source
Note the message in the ViCare app.
■
■
Heat generator installation and service instructions
Heat generator operating instructions
What to do if...
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