Viessmann GC1 Installation And Service Instructions

112
Troubleshooting
Faults which are displayed at the programming unit
The red fault indicator flashes for every fault.
A fault code flashes in the display if a fault message has been issued (see
page113).
1 Fault number
38 Fault code
U Fault symbol
Call up further fault codes
with a or b.
A fault can be acknowledged
with d. The fault message in the
display will be hidden, but the red
fault indicator continues to flash.
A central fault messaging facility
connected to pluggÖ will be
switched OFF.
A new fault message will be
displayed if an acknowledged fault
is not removed by the following
morning.
Calling up acknowledged fault
messages
Press d for approx. 2s.
The fault will then be displayed.
Select the acknowledged fault
with a or b.
5862730GB

Viessmann GC1 Specifications

General

Brand	Viessmann
Model	GC1
Category	Control Unit
Language	English