Glow-worm Ultimate 3 - 13.6.4 Replacing the PCB; 13.6.5 Replacing User Interface PCB; 13.7 Checking Product Leak-tightness; Product Decommissioning and Disposal

34 Installation and maintenance instructions Ultimate 3 0020239568_03
A
5
C
B
8. Lift the heat exchanger up slightly and remove it to-
gether with the condensate tray.
9. Remove the ignition transformer (5).
10. Replace all the seals.
11. Install the new heat exchanger in reverse order.
13.6.4 Replacing the PCB
C
C
D
B
C
C
D
B
A
A
1. Open the electronics box. (→ Page 21)
2. Pull all of the plugs out from 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 plugs.
7. Close the electronics box.
13.6.5 Replacing the PCB for the user interface
B
C
C
D
A
A
1. Open the electronics box. (→ Page 21)
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.
13.7 Checking the product for leak-tightness
▶ Check that the product is leak-tight. (→ Page 28)
14 Decommissioning the product
▶ Switch off the product.
▶ Disconnect the product from the power grid.
▶ Close the gas stopcock.
▶ Close the cold-water isolation valve.
▶ Drain the product. (→ Page 32)
15 Recycling and disposal
Disposing of the packaging
▶ Dispose of the packaging correctly.
▶ Observe all relevant regulations.
▶ For detailed information refer to www.vaillant.co.uk.