Calling Up And Clearing The Fault Memory; Resetting Parameters To Factory Settings; Preparing The Repair Work; Replacing Defective Components - Vaillant ecoFIT pure Series Installation And Maintenance Instructions Manual

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. (→ Page 26)
▶
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. Switch off 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-bearing
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 sealing materials.
13.4.1 Procuring spare parts
The original components of the product were also certified
by the manufacturer as part of the declaration of conformity.
If you use other, non-certified or unauthorised parts during
maintenance or repair work, this may void the conformity of
the product and it will therefore no longer comply with the
applicable standards.
We strongly recommend that you use original spare parts
from the manufacturer as this guarantees fault-free and safe
operation of the product. To receive information about the
available original spare parts, contact the contact address
provided on the back page of these instructions.
▶
If you require spare parts for maintenance or repair
work, use only the spare parts that are permitted for the
product.
0020230533_06 ecoFIT pure Installation and maintenance instructions
13.5

Replacing defective components

13.5.1 Replacing the burner
1. Remove the gas-air mixture unit. (→ Page 34)
2. Remove the two burner seals.
3. Remove the burner .
4. Insert the new burner.
5. Insert two new burner seals in the burner hood.
6. Install the gas-air mixture unit. (→ Page 36)
13.5.2 Replacing the gas-air mixture unit
1. Remove the gas-air mixture unit. (→ Page 34)
2. Install the new gas-air mixture (→ Page 36).
13.5.3 Replacing the heat exchanger
1. Remove the front casing. (→ Page 18)
2. Remove the gas-air mixture unit. (→ Page 34)
1
B
3. Remove the gas pipe (1).
1
A
2
3
4. Remove the temperature sensor (3).
5. Remove the upper clip (1).
6. Remove the lower clip (4).
7. Remove the flow pipe (2).
A
2 4
B
37