0020277262_02 ecoFIT sustain Installation and maintenance instructions
33
3.
Carefully remove the electrode from the combustion
chamber.
4.
Check that the electrode ends
(4)
are undamaged.
5.
Check the electrode distance.
–
Clearance for the ignition electrodes: 3.5 to 4.5 mm
6.
Make sure that the seal
(5)
is free from damage.
▽
If necessary, replace the seal.
12.10 Cleaning the condensate trap
2
3
1
A
B
1.
Unclip the lower section of the condensate trap
(1)
from
the upper section of the condensate trap
(2)
.
2.
Remove the float
(3)
.
3.
Flush out the float and lower section of the condensate
trap with water.
4.
Fill the lower section of the condensate trap with water
up to 10 mm below the upper edge of the condensate
discharge pipe.
5.
Re-insert the float
(3)
.
Note
Check whether the float is present in the
condensate trap.
6.
Clip the lower section of the condensate trap
(1)
into the
upper section of the condensate trap
(2)
.
12.11 Installing the gas-air mixture unit
1.
Install the burner.
2.
Install two new burner seals in the burner hood.
3.
Install the gas-air mixture unit.
4.
Tighten the screws in a cross-wise pattern until the
burner flange fits closely and uniformly onto the mat-
ing surfaces.
–
Tightening torque: 7 Nm, if a torque spanner is
available
5.
Install the flue pipe.
6.
Install the air intake pipe.
12.12 Completing inspection and maintenance
work
1.
Check the gas connection pressure (gas flow pressure).
(
2.
Check the CO
₂
content. (
3.
If required, set the maintenance interval.
4.
Check the product for tightness. (
5.
Install the front casing. (
6.
Fill out the relevant Service Record section in the
Benchmark Checklist located at the rear of this
document.
13 Troubleshooting
13.1
Eliminating faults
▶
If fault messages (
F.xx
) appear, eliminate the fault after
referring to the table in the appendix or using the check
programmes. (
Overview of fault codes (
If several faults occur at the same time, the display shows
the corresponding fault messages for two seconds each in
alternation.
▶
Press
(max. three times) to restart the product.
▶
If you are unable to eliminate the fault and the fault re-
curs despite reset attempts, contact customer service.
13.2
Calling up and clearing the fault memory
The last 10 fault messages are stored in the fault memory.
▶
Call up the installer level. (
▶
Navigate to the
fault codes
.
◁
The number of faults that have occurred is shown in
the display and the faults that are currently called up
are displayed with their fault numbers
F.xx
.
▶
Press
or
to call up individual fault messages.
▶
To delete the entire fault list, navigate to diagnostics code
D.094
in the installer level.
▶
Set the diagnostics code to
1
, and confirm by pressing
.
13.3
Resetting parameters to factory settings
1.
Navigate to diagnostics code
D.096
in the installer level.
2.
Set the diagnostics code to 1, and confirm by pressing
.
13.4
Preparing the repair work
1.
Decommission the product.
2.
Disconnect the product from the electrical installation.
3.
Remove the front casing.
4.
Close the gas stopcock.
5.
Close the service valves in the heating flow and in the
heating return.
6.
Close the service valve in the cold water pipe.
7.
Drain the product if you want to replace water-carrying
components of the product.
8.
Ensure that water does not drip on live components
(e.g. the electronics box).
9.
Use only new seals and O-rings. Do not use any addi-
tional components.