Decommissioning the product 13
0020239562_02 EASICOM 3 Installation and maintenance instructions 29
12.6.8 Replacing the PCB for the user interface
1. Open the electronics box.
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.
12.6.9 Replacing the expansion relief valve
1. Remove the clip (2).
2. Remove the expansion relief valve.
3. Fit the new expansion relief valve with a new O-ring.
4. Reattach the clip (2).
12.6.10 Replacing the volume flow sensor
1. Pull out the plug.
2. Remove the volume flow sensor (1).
3. Install the new volume flow sensor.
4. Plug in the plug.
12.6.11 Replace the pressure sensor
1. Pull out the plug.
2. Remove the clip (1).
3. Remove the pressure sensor (2).
4. Install the new pressure sensor.
5. Reattach the clip (1).
12.7 Checking the product for leak-tightness
▶ Check that the product is leak-tight. (→ Page 21)
13 Decommissioning the product
▶ Decommission the product.
▶ Disconnect the product from the power mains.
▶ Close the gas isolator cock.
▶ Close the cold water stop cock.
▶ Drain the product. (→ Page 26)
14 Customer service
For contact details for our customer service department, you
can write to the address that is provided on the back page,
or you can visit www.glow-worm.co.uk.
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