Completing Repair Work; Decommissioning The Product 12; 13 Customer Service - Vaillant ecoTEC plus Installation And Maintenance Instructions Manual

5. Install the new PCB in such a way that it clicks into the
groove at the bottom and into the clip at the top.
6. Plug in the PCB plugs.
7. Close the electronics box.
11.5.5 Replacing the PCB for the user interface
A
1. Open the electronics box. (→ Page 11)
2. Pull the plug out of the PCB.
3. Undo the clips on the PCB.
4. Remove the PCB.
5. Install the new PCB in such a way that it clicks into the
groove at the bottom and into the clip at the top.
6. Plug in the PCB plug.
7. Close the electronics box.
11.6

Completing repair work

▶
Check that the product functions correctly and is leak-
tight (→ Page 16).
12 Decommissioning the product
▶
Switch off the product.
▶
Disconnect the product from the power mains.
▶
Close the gas isolator cock.
▶
Close the cold water stop valve.
▶
Drain the product. (→ Page 19)

13 Customer service

To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance Agreement.
Please contact Vaillant Service Solutions for further details.
Vaillant Service Solutions: 03 30 100‑31 43
0020200871_00 ecoTEC plus Installation and maintenance instructions
D
C
C
B
A

Decommissioning the product 12

21