been looking at a scotsman ac125 earlier tonight, its not producing much ice, its ran fine for the last 10 years but has recently started to produce next to nothing, with it being so old i dumped the gas vaced it out and gave it a fresh charge of gas

now the evap is getting cold enough to start forming ice but after its cycle it drops ice shells hollow, now looking on the documentation on the website it would appear its not getting long enough on the second stage of freezing.

stage 2 freezing timer can be altered by the dip switches on the pcb, what i dont understand is why after 10 years it suddenly isint performing.

- getting a good 2 psi suction pressure near end of cycle
- discharge around 9 - 10 bar

going to check maybe extend the stage 2 tomorrow but wondering if anyone can suggest anything as i havnt really worked on these although they look rather simple in design im still confused