Ok today I kept the machine on(brew boiler only) for about 1hr haven’t heard any ticking, now it’s cooling down, still nothing. Later today I might try it with service boiler on.

    Inspector Ok today I kept the machine on(brew boiler only) for about 1hr haven’t heard any ticking, now it’s cooling down, still nothing. Later today I might try it with service boiler on.

    I used to run mainly with brew boiler only, but sometimes I did use the service boiler and don’t remember any unusual noises. I am definitely sure I would have been alerted if anything strange was happening. As machines cool down they can tick, usually it’s not regular though and definitely nothing when cold. There are no components in the LLC that can tick,

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      I’ll check my machine when I get home tonight. It would’ve been off since 8am. I doubt the tick is related to expansion/contraction of metals though.

      Ok steam boiler was on and now cooling off been about 1.5hrs, ticking going on about every two seconds but I can only hear it if I put my ear against gauge area :)

        Surely there shouldnt be any heat/bubbling left after 12 hours :) Will check mine again in the morning before i switch it on.

          Mine hasnt ben on at all today and … no ticking, surprise surprise but tomorrow i expect to be able to hear it from around 18″ distance. Now I’m not claiming to have mega powers when it comes to hearing but its as MRS describes, like a swishing analogue watch . Strange that it doesnt seem to unwind itself for a good few hours after powerdown. It definitely doesnt sound like a boiler or internals cooling down but i suppose that’ll be how things will be accepted …. i’m not too worried about MY machine now that others can confirm my findings. Cant speak for others who may have way more enquiring minds than me ….

            MediumRoastSteam - as reported above, doesn’t seem to tick away when the machine is on. So I turned the machine off (while hot) and tried to hear it out. No ticking.

            🤔🧐

                DavecUK Is this off off, or off.

                MediumRoastSteam So I unplugged the machine and the noise is still there. I then moved the machine somewhere else, and, to my surprise, the noise is still there.

                I tried both Dave. Off and Off Off. :-)

                PS: Looking at some pictures, looks like the machine does have a DTDP (Dual Pole Dual Throw switch) or at least a DPST (Dual Pole Single Throw) switch.

                    DavecUK my wife turned the machine on already in the morning I couldn’t check it, but it has been 4hrs since it’s turned off and now ticking like a clock hahaha. I also unplugged it. I don’t get this :)

                        Inspector If it’s ticking like a clock when unplugged….it must be mechanical and heat related, otherwise I can’t explain it. There isn’t really a power source of any note within it? Perhaps a small cap keeping the RTC going….if it’s got one. Not sure it has.

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                          There is definitely something going on, even when the machine is not powered. It doesn’t happen when the machine is on or hot. So yeah… A mystery.

                          RTC as in Real Time clock/controller? I don’t think it keeps track of time though?