Flashes And "Fault" Is Displayed; "Controls Locked Out" Is Displayed; External Hook-Up" Is Displayed; External Program" Is Displayed - Viessmann VITOTRONIC 200-H Operating Instructions Manual

Troubleshooting
"

" Flashes and "Fault" is Displayed


Cause
Heating circuit control unit fault.

"Controls Locked out" is Displayed

Cause
This function is disabled.

"External Hook-up" is Displayed

Cause
The heating program selected at the control unit was
changed over by an external switching device.
e.g. extension EA1

"External Program" is Displayed

Cause
The heating program set at the control unit was changed
over by the Vitocom communication interface.
30
Remedy
Proceed as described on page 27.
Remedy
Your heating contractor can lift this block.
Remedy
No remedy required.
Remedy
You can change the heating program.
Vitotronic 200-H, HK1B Operating