For dismantling the interference filter and the main power cable first of all
dismantle the sockets. Unscrew the screw mounted on the main power cable
holder and release the cable.
Then unscrew the two screws, assembling the interference filter and the
concrete sheet. Push the filter as it is seen in the picture in order to release it.
24) THREE WAY VALVE
Unscrew four screws, after loosen the hose clamps disassemble the valve