Operating instructions

Control unit faults
1. Find curr ent fault with c.
2. Select additional fault codes
with a and b.
3. Acknowledge fault
Thefaultcanbeacknowledged
with d . The fault message i n the
display will be hidden, but red fault
indicator A co ntinues to flash . A
new fault message will be shown in
the display if an acknowledged fault
is not removed by 07:00 h the fol-
lowing day.
Fault on the burner control unit
1. Find curr ent fault with c.
2. Select additional fault codes
with a and b.
3. Acknowledge fault
Thefaultcanbeacknowledged
with d . The fault message i n the
display will be hidden, but red fault
indicator A co ntinues to flash . A
new fault message will be shown in
the display if an acknowledged fault
is not removed by 07:00 h the fol-
lowing day.
Call up current fault codes (cont.)
73
Troubleshooting
5692 548 GB