Just a quick word of caution re the above circuit diagrams. The pictorial diagram shows wire colours that are incorrect on some models I have seen.
Over time Gaggia have changed the colour of some of the wires. Most of those I have seen are completely wrong by Aussie standards.
Almost opposite of what we use here, though I have got one very old one that is at least partly correct.
Over time Gaggia have changed the colour of some of the wires. Most of those I have seen are completely wrong by Aussie standards.
Almost opposite of what we use here, though I have got one very old one that is at least partly correct.

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